I would say bet on ETH on BNB, they have lots of capabilities that trump BTC, smart contracts allow for so much potential its insane.
example the whole creation of DEXs on chain is a revolutionary technology and a change to how markets work.
illiquid shitcoins can now be traded on a dex without huge pitfalls, I remember trying to trade shitcoins on cryptopia before it went under and illiquid markets are a pain now with LP pools you can trade stuff that was untradable back in the day!