Did you get a chance to play the open beta last weekend. I fell in love with the monk. However I was very surprised that I enjoyed ALL of the five classes! I was sure i wouldnt like the WD and would love the DH but as it turns out the DH is my least favorite and the WD is my 3rd fav. Monk>Wiz>WD>Barb>DH. Two weeks cannot come fast enough!
Swap Wiz and Barb for me, but I agree with Demon Hunter being least favorite of them all.
I've been in the closed beta for a few months now, it's been interesting to see all the changes that have been implemented in such a short period and just before release.