So far, I can tell that Uniswap is the most successful DEX ever created, Before I have said a lot of times that DEX is usually stagnant, low volume and liquidity but uniswap made it work even with high fees on ethereum network their volume is still increasing. I guess that is why their token UNI is getting more attention apart from that they are giving a lot of money to Uniswap traders for free and UNI has staking features too.