You should clarify what you mean with "most profiting"? Do you mean the percentage rate of interest? Or the total return converted into bitcoin or fiat?

What I mean by that is this: An altcoin with 5% staking interest per year can be more attractive than an altcoin with 50% staking interest. Because it also depends on whether the Altcoin keeps its value or even increases its value. Most altcoins with high staking interest have not increased in value and even lost value against bitcoin and fiat.