No doubt, ethereum and Solana meme coins have played a significant role in the rise and popularity of meme coins in the entire crypto currency space, and I think it makes no sense comparing meme coin in both ecosystem as to which is more profitable, for ethereum meme coins had and may still have its time, while Solana memecoins also have had and may still again, have it's time.
But let's not forget that memecoins on other Blockchain ecosystems are also having the fair share of the memecoins market capitalization, for example,
COQ INU on AVALANCHE is one that is currently doing very well and with a high promising future as well, since it's yet to reach a billion market cap like its counter part.
FISH on TON BLOCKCHAIN has done more than 50x from its fair launched price and currently sitting at a little above $25 million dollar market cap and over 18k holders even when it's not yet listed on any centralized exchanges and even coinmarketcap.
Now, imagine what would happen when FISH gets listed on centralized exchanges and enters coinmarketcap, it will explode from its current price levels.
So, memecoins on every Blockchain ecosystem have their time, and when their time comes, they shine, regardless of where they are built, all it takes is a brilliant idea and a genuine team to steer the wheel.