I'm not sure "Drifter" is a good name for a tire. I'd rank it just above "Detonator" for inspiring confidence.
I've got a set of 29x2.0 Schwalbe Marathon Supremes on my rain bike. Schwalbe gives them their highest rating for grip, and particularly wet grip. The Big Apples get a pretty good rating too. Honestly though, I'm not sure I've ever had problems with wet grip on pavement with any tire. It's the leaves you have to watch out for, and I don't know of a tire that has good grip on wet leaves.