I think huobi IEO is better than binance because right now many people including me have some trust issues about the security of binance and also users from it needs some BNB to use on any things on the exchange which its a hassle due to the high price on BNB right now.
What do you mean by security issues at binance? After all that happened, I still see binance as the best exchange site for IEOs. No other site can compare itself with it. Having BNB as a prerequisite doesn't make it difficult or makes it bad, it is only trying to get the best investors for any project it lists on the launchpad.