A lot of people here like Monero.
Ethereum is quite nice too.
Let me bold the important part. Outside of here barely anyone has any interest or has heard of them. Ethereum is using a marketing scheme itself "Bitcoin 2.0". Realistically Bitcoin has currently zero competition. Litecoin has some people that occasionally start pumping it, however it usually returns to normal levels.
I understand there are 600 other coins and that banks might be involved in trying to put in place there own mechanisms based on the blockchain but now that bitcoin has become as big as it has is there even a 10% chance that anything could replace bitcoin in the next few years.
The market cap of all those coins combined does not come close to Bitcoin.
Do those two have caps on the number of coins? Without a cap or some limitations like bitcoin has then is it not the case that developers can go on printing money (mining coins) at whatever rate they want forever.
Are you talking about POS coins? No, nobody can "print out" coins at the rate at which they desire. They can only do this if they mess around with the source code and you decide to run it.