Never used any of these stable-coins. When I need stable coin, I use USD.
I'm trying to stay away from USDT. After reading a lot about it, I can't trust them and I'm really sceptical about it.
Never heard about Havven? Which exchanges have it? I would like to see more information about, because I tried tosearch and didn't found anything.
Honestly, I wonder why I would want to leave my coins in all these fixed rate currencies when I can as well just trade it against fiat directly. I feel it is just a way for some devs to just generate some free coins for themselves with no real value or importance since we can just make use of fiat which is already serving that purpose. Even USDT right now is not trustworthy, so at least for something that I am sure I would not end up regretting, fiat remains the best option in this case for holding a stable currency.