The gravity/earth works really well, the only bad draw is when you don't get a pulverizer and a protect artifact. I modded it a bit, since four monsters really isn't much and Basalt Dragons are crazy expensive, but it works about the same. It's definitely slower than the poison deck, but it gets the job done most of the time. The times that yer 3 pulverizers aren't in the last 1/3rd of your deck.
The poison deck works pretty good if you can get a really nice hand, but it's got its own problems. It can't really deal too well with sogs, or FB's, and those are becoming more and more popular. Also, miracles and purifies ruin it, since you don't really have anything to defend against that kind of thing. And by the time they can throw a miracle they've got a crapload of monsters anyways.
Big fan of the pulverizer deck, highly recommended.