Hearthpwn

Druid seems to be super strong. Usually all druids I face after 2 wins have Embiggen on turn 1, which can get very nasty quickly if you can't smorc them down. Funnily enough I've never found embiggen myself when drafting, and drawing it on turn 1 seems like crazy luck is needed, but apparently not?

I haven't seen or tried a single warlock game, so I assume that is the worst class. Rogues are also super easy to beat usually always, so they are in the bottom in my opinion.

I have gotten most wins with a priest without any super op cards, so I'm saying that is the strongest. The value is just so high on most cards. And mind control makes people insta-concede usually.

Mage is also incredibly powerful. Very easy wins with that one, assuming I don't pick too many spells and never pick the cheap legendary that spawns 5/5s, unless the other choices are garbage.

Not sure about shaman. Haven't fought against any shamans ever, so I assume it's as bad as warlock.