Experience

It seems after lvl 85 that baal runs really suck they give very little exp and it takes forever to get to the next lvl made even worse by black souls.

nah its more around lvl 90ish if u have a anni

It also depends on who is in the game. I think if there are more char around your level you get better exp.

Hell Baal runs just suck.

It's hard to find one that actually goes anywhere. I usually will join Duel games and clear The Pit for experience, if I have a character that can do that.