11/05/2012 05:57 PMPosted by VaeflareVortex and Molten are probably the top contenders.
Vortex is pretty easy to deal with since you can just use pretty much any obstruction (including corners, sometimes even staying right by a wall) and it will only make your character hop a bit but pretty much stay in the same area.
Molten is a bit different. With the experience with my monk I found that if you attack below the monster with molten, you won't take as much damage of course this depends if they are just attacking you and not running around like most ranged attackers. Basically it's just not stepping in the fire and retreating if needed to have a new area free of fire.
However these two affixes really depend on what monsters they spawn with so it's quite hard to be absolutely sure how to counter them the best way.
For my DH all affixes are quite easy, just not some of the monsters that spawn with them. Only Reflect Damage takes me awhile since you are pretty much fighting yourself (and my awesome LoH/LS xbow has only 900ish damage which is a bit low).