What character to fight effectively with Ubers?

Please help me choose a character that can effectively use Ubers - I've been playing PD2 for about two weeks now and currently have a sorc cold orb, lvl 92, and ama cold arrow, lvl 90 - both of these characters do D2LoD content, maps, and Ancients, but they fail in Uber Tristam and against clones and bosses from PD2... I'd like a character that would be good at Ubers, and I'd rather not change my builds, just do something new... I'm thinking about a druid, but I'd prefer to get advice from experts... If I remember correctly, smiter was good in D2LoD, but I don't know about this one...