steem is a cool concept but super young so who knows exactly where it will go. people not being able to edit their posts and potentially embarrassing themselves for all eternity may backfire - some things should be mutable.
binance coin or any exchange coin is good as long as the exchange is good. i have binance coin purely for trading fees.
dogecoin is the original meme coin and, while it provides no technical leaps and bounds, has the cutest logo.