They don't usually allow these types of threads but I can't seem to level a warrior and I love my DK, however my wife's main for life will always be her warrior (its just too much of a personal preference). Try both is my only suggestion or go to each forum and ask why they like their class.
Questions about "what is more fun" is just too subjective to have an answer. I find DK's to be awesome. I also find half my friends hate them. It's all personal and thus there is no real answer...and these threads just end up pointless spam filled with everyone's opinion, fighting, and flaming.