Yes Have tried Marie Sharp's and find it excellent. Also love the Batch 37.
Havent had much luck with Acid Rain penuts. The jars I got were stale. I like their sauces: Acid Rain, Hatari, Alberta Crude as well as the special reserve version of these sauces. The latter are pretty hot.
Hard to pick one
In the medium to hot category, Iguana Radioactive, Extreme, Asbirin xtra Strenght, Firemans Blend
In the very hot to extreme category, Kick Ass, Vicious Viper, Bomb Ground Zero, Habanero 750, Satans Blood