OG Diablo 2 its unbalanced as fuck. I'm currently playing it on its second difficulty level and there are times when I get into a room and I get freezed by some archer while 20 or so minions start to beat the hell out of me. Hopefully they'll fix that kind of bullshit in the remake.
Regarding Diablo IV, all I can say it that it looks fucking incredible and really ambitious. After watching the latest in-game footage it has become one my most anticipated games.