When comparing Ethereum vs Cardano, Ethereum definitely has the upper hand. I consider Ethereum as the most reliable coin after Bitcoin. Ethereum has developed their own platform a lot. Maybe a few days ago a bad news sent the Ethereum market down a lot. However, with the market becoming positive, Ethereum's market has started to change. But if the Bitcoin market is a little more positive, it will be seen that the Ethereum market has changed a lot. Of course I think Ethium is the best ALT coin.
I agree with you, there are many positive things Ethereum has displayed in the past that Cardano have never display them till now which is part of some of the advantage that will make many traders to choose Ethereum as their best coin in this new year. Ethereum teams are very active just to make both long term traders and short term traders feel good with their plan of achieving something special from their investment in the future, because they believed Ethereum will not allow other coins to take over their second position in the market.
That's true, and this type of discussion is only beneficial to cardano, because ETH gets no benefit from being compared to ADA, but when you compare ADA to ethereum, that means it does help it out a lot, it gives them a chance to basically keep on trying to beat ETH in any way or capacity. At the very least, even if it doesn't take the second spot, it could grow faster, ada going up 50% while ETH goes up 30% type of thing is what they are looking for.
This is why it's so much promoted, so that it would be liked by everyone at the same time. It's a sad situation to be in, but it's definitely a method of marketing for them to work on, and if they could convince enough people, why not be good enough.