I was bored and disillusioned with Diablo III so I found a couple of far superior choices:

1) Median XL: A super extensive mod to Diablo II that changes and or enhances almost every aspect of the game. Shitloads of new content added and very very fun.

http://www.medianxl.com/t1589-mxl-ul...ve-v7-released

2) Path of Exile. It's a free game in open-beta that seems to be far better than D3 and Torchlight, IMO. The level of character customization is super daunting.