I personally prefer USDT, because the volume and market cap of USDT is higher than BUSD, besides that USDT has been widely used for pairing on any exchange while BUSD is only available on Binance exchange, so of course it makes me easier to use and save USDT, then I think USDT is still safe to use until now, because USDT still has a high volume, so it proves that there are still many people who believe in using USDT, thus making USDT still able to survive.