Folks:
I've been fighting the drum module battle for a while, and have finally gotten a close-proximity hearing of a couple of serious contenders. The Yamaha DTX2U and DTExtreme are good modules, and are obviously intending to compete with Roland's TD-8 and TD-10.

My son, who is a drummer, stuck the Roland TD-8 about midway between the two Yamahas in terms of tone quality (even though, pricewise, it's about the same price as the DTX2U). However, both Yamaha's have some drum sounds I really like which are absent from the Roland.

Any other possibilities I've missed? Give me input! I need input!