If I need to use a USD stablecoin, my personal preference is USDC.
Personally, I prefer USDT over USDC, even though they are both stable coins than USD, I prefer USDT,
and it's certainly very safe to use in trading on any exchange.
USDT has been traded longer than USDC but in my opinion the two tokens are the same because they have a liquidity guarantee every time they mint new tokens. In my opinion, choosing between USDT or USDC is about our trust in liquidity