depending on what platform you will use to trade, if you use Binance Platform then it's better to recommend BUSD than USDT, but in terms of price, maybe USDT is safer and can maintain its value as well.
Yes, if the trader will be under Binance, there's advantage of getting the BUSD. However, don't put all your investments on that. It is always better to diversify your portfolio. Because you have no idea what will happen next, it is better to safeguard your funds by putting them into various currencies.