TOPIC: What class would be best to solo a dungeon?

jon wrote: Let’s assume mostly / all rare and doing dungeon first time without knowing the puzzle answers

I did first nightmare solo (barbarian)
with that build I would say normal/hardcore...hope no last room puzzle

Red Build solo. Okay hoping you are playing on Normal then. Do you have a large number of rare healing potions that you can drink 1 a round as a free action if needed? If not you are pretty much going to have to play as a cleric or druid. The last room if it is a puzzle you have to hope it is not the kind that requires more than 1 person (no moongate maze puzzle).