My top#1 class is sorcerer and wizard, Sorcerer because they are creatures of raw power and wizards because they usually study hard to earn what's theirs. Wizards learn the world around them and beyond worlds through sheer knowledge and insight which is amazing. I'm a big fan of spellcasters so i also love warlocks (If dnd setting: Fey-based and demon pact is always interesting especially in roleplay). Barbarians would be my 2nd favorite because of their craziness and the way they act cannot really be anticipated. They will fight violently for whatever cause, and or for their tribes. I also like archers/thieves but i prefer rangers because of the lone way they live in the lands and scout and gather herbs etc. I've always been fascinated by secluded-hobo-like characters who end up being popular and glorious.