Rogues are my favorite, love all those skill points.
We usually play adventures with lots of interaction, investigation and non-combat scenes. If I wanted sheer power, the cleric is probably the most fun to play.
I vote clerics. Why? Because if you have a true neutral alignment, you can demand tribute of some sort from the party in exchange for healing. No $$$, no help.
My favorite class is STILL the barbarian despite your continued blindness to it glory and greatness. Someday you will acknowledge the Barbarians total domination and coolness factor.