Torchlight is a tad simplistic, I also found the environments got seriously repetetive after not a lot of time spent playing.
Sacred 2 is my preference of the two you mentioned, its got multiplayer but Ive never touched it, so couldnt tell you how popular it is.
Sacred 2 is my preference of the two you mentioned, its got multiplayer but Ive never touched it, so couldnt tell you how popular it is.