I am loving this discussion and like your perspective. I'll take the opportunity to share another doubt that I have regarding Bitcoin being the at the Helm for ever..
I've been reading about the upcoming hard fork and how the signatories have not been in sync with what is the way forward POW vs POS etc..
If enough ppl were to get onboard the other ship could Bitcoin cash be bigger than BTC
You are mixing together a variety of ideas - and sure it becomes easy to get all fucking mixed up about a variety of the concepts and the supposed deficiencies in bitcoin that are propagated by a large number of bitcoin challengers from a variety of perspectives.
If we attempt to look at bitcoin's situation in context - and even let's say from about 2013 and then more recent contentions that began to amplify in about mid-to-late 2015.
In 2013, we had two explosive growth periods that resulted in nearly an 80x increase in price from $15 to $1163, then year long correction through 2014 that brought BTC prices into the mid $250s for most of 2015. Sure, some of the correction was probably necessary and natural; however, there was a lot of misinformation spread about bitcoin too.. and even starting in late 2015, with the various scale or die proposals that went from XT, to Classic, to emergent consensus, to B-cash (and also segwit2x).
A lot of these scaling talking points were campaigns by persons with purported differing visions of bitcoin; however, they were also propagated and supported by forces that were hostile to bitcoin (whether banksters or government or other traditional institutions that felt threatened by the decentralized nature of bitcoin). So there has been a constant guise that suggests various ways that bitcoin is technically deficient (or that it should have goals to immediately be able to compete with visa) , while the real goal has been to attempt to undermine bitcoin's governance and to make bitcoin easier to change. So if there is some way to accomplish undermining the governance of bitcoin and to make bitcoin easier to change, then bitcoin becomes no longer decentralized, no longer a threat, no longer valuable. So whether you are a banker, a government official or some short-sighted alt coin pumper, your goal may have been to consider it in your interest to undermine bitcoin and to join alliances with these various big blocker camps and to spread propaganda, including your point about whether proof of stake is better than proof of work. Further nonsense asserting deficiencies in POW, which really is part of the innovativeness that bitcoin brings to the table and differentiates it from previous systems.
So, in essence what I am saying is that a lot of the information that we have been encountering have been guises to undermine bitcoin, and if you can see through the nonsense, then you won't get your bitcoin's shaken from you you will continue to BUYDL and HODL... and just try to accumulate to the best of your ability without overinvesting (because everyone has to surely attempt to cover his/her monthly expenses and not get shook out of bitcoin because of volatility and bad planning of those expenses in advance and with strategies whether you have high income or low income).
and there's also the Russians "Universa" claiming to be a 100 to 1000 times faster than BTC or ETH with lower cost of operation..
I would not get too worried about the variety of upstarts, even if they are supposedly technically superior. The problem with a lot of them is they are not truly decentralized, including Ethereum. Bitcoin is really the only game in town with a bunch of competitors trying to attempt to act like they are Bitcoin 2.0 or that bitcoin is dead or that bitcoin is technologically deficient.. blah blah blah.
On the other hand, if you have some faith in the long term prospects of some other coin(s) to take over bitcoin market share or to possibly surplant it, then of course, you can put some of your money in that direction. Each of us are going to come to different judgements regarding the viability of these various other projects and whether there is much of any truth in the various bitcoin is dead or broken claims.
Bitcoin has the first movers advantage but is that enough to keep it ahead of the game?
Sure there is some truth to the claims about first mover advantage, but the fundamentals are much greater than a simplified description of first mover advantage. A lot of bitcoin denigrator folks strive to put down bitcoin by suggesting that bitcoin is technologically deficient and that all it's got going for it is it's first mover advantage - which frequently involves over exaggerated claims - and a bunch of fucking so what. Bitcoin is a project that competes on the merits and does not have marketing - and so there are a bunch of folks in bitcoin working on a bunch of scattered projects that are going to take a long time to innovate, improve and adopt. And, bitcoin's security and computing power brings value. Even if 80% of the miners were to leave bitcoin, bitcoin is still secure - but don't get me wrong, I doubt that there is going to be any vast exodus from bitcoin.. because the value remains with various networking effects that continue with bitcoin.. and if we see it leave or believe it is leaving then, there would be an advantage to leave, as well, but those various projects that you name are not threat to bitcoin as you seem to imply, including Ethereum.
Some say Ripple was introduced so that the banks could have the market share and also be able to influence the market...
I think that Ripple was around before bitcoin, but it was transformed in light of bitcoin, so yeah.. ripple attempts to be another distractive competitor that is also largely centralized and manipulated in its own rights.
I think the best way for BTC and others to survive will need us to get accepted into the legal framework because since the banks have more money they could play unfair ..
I don't think that we can really say that there is any best - because sure there are better case scenarios that could play out, but in the end, the market is going to evolve and folks are going to chose where to invest and systems will adapt to such movements. Don't get me wrong, because there is almost no fucking way that bitcoin is going to become wide spread adopted without a large number of continued battles that may well become more and more intense during any time periods that banks, governments, traditional institutions believe that they have ways to attempt to undermine and/or weaken it. In the meantime, expect continued manipulation, volatility and misinformation, and try not to gets scared or shaken away from the level of bitcoin that you believe to be prudent for your own financial, timeline and viewpoint circumstances.