I can only see Ethereum taking the lead here, many altcoins are still not showing good sign of the bullish trend yet, makes me think that some altcoins that aren't good enough might be left behind in this altcoin season but that's too early to tell right now
Ethereum could be the one with one of the highest increases in the market, however if you look at most of the coins for the past one week, you will see that almost all of them had a huge increase, combine that with a whole year of 2020 going up, they have at least tripled their prices since this time last year. Ethereum is 4th highest earner this week, so it is definitely looking like that is the big earner, but stellar, cardano and maker made a lot bigger increases, stellar literally had 142% in just one week. On top of this almost 15 coins made 50%+ returns, and basically we had a blast for all projects this week.
This is of course talking about only the past 1 week, for example Ethereum went from 800 dollars or so to being 1.100 dollars, which is a HUGE increase I agree, however eth was about 150 bucks or so last year this time around, so reaching 800 was already a big achievement. I have said before that eth will reach to 1200 and it is getting there, nearly there, it was obvious that anyone who have money would profit a lot from having ethereum for sure.