Everyone has their own choice, I guess some of people might choose BUSD since they are probably traders on binance, well for me I prefer changing my crypto to USDT, cause its popular and that's what I use when trading P2P, also I like USDT cause it's the most widely used stablecoin, another cool part about it is that it runs on two blockchains Ethereum and tron, since gas fees are quite high on eth network now, I bet TRC-20 USDT will be used more than ERC20 USDT.