The current biggest stable coins are:
1- Tether: USD
That's USDT mate.
After a research I saw that a lot of negative comments are about USDT.
However, USDC and BUSD seems the most trusted .
What do you think?
That's FUD. Tether has won many cases against it in the court. If it was as bad as they said, it wouldn't be standing at this point. The fact that some of it is value is stored in something else then usd is just weird fud as banks themselves are way worse in this comparison.
Fud will come to other stablecoins too. Just give it time, they just don't have as much haters yet that it would fly.