Native Instruments Studio Drummer by squirreltrench
I purchased Studio Drummer a few months ago, and I love it. I'm not familiar with the other software drum packages that have been around for a few years, but this one sounds *great*. Lots of flexibility in EQ and compression built in, and you can route individual drums out in your DAW if you like. But you almost don't need to; there is so much flexibility within the package itself. You really don't need to use reverb with Studio Drummer, because the Room Mic sounds excellent for that purpose. When you need verb, you can just turn up the Room Mic, or bump up the send into the Room mic of the part of the kit you want a wetter sound from. You have control over how much of each drum goes into both the Room mic and the overheads. So you can create natural sounding (but physically impossible) things like sending only toms and cymbals to the overheads and only snare to the room mic.
Studio Drummer comes with three different kits that you can tweak to your heart's content; the Session Kit, the Stadium Kit, and the Garage Kit. I like the "Garage" kit so much, I haven't played too much with the Session kit and the Stadium kit. The Garage kit's kick sounds fantastic, as does it's floor tom, and the cymbals too (all of them - 2 crashes, a ride, a china, and a splash.) There are a variety of articulations for all the cymbals (except the splash) for excellent expressiveness.
As far as I'm concerned, Studio Drummer is fantastic.