I am now a drum enthusiast. I started playing attention to drums one year ago. Before that, I didn't care that much about them or what they could bring to the music. However, I already had some favorites who played stuff that was always flashy and fun to listen to: Portnoy, Billy Cobham and Bozzio. Then I started reading more about drumming and looking for music that highlighted the drummer's work (some threads in this forum were great for that), finding videos on youtube and other places (one interview with Gavin Harrison in Drumdepartment opened my eyes about lots of stuff), etc.
DT's search for a new drummer helped a lot to make me completely absorbed and obsessed about drumming, to the point of starting some lessons. People were talking about drummers, what they could do differently from Portnoy, etc. The Spirit Carries On videos were great, I've watched them at least 15 times, and I always enjoy watching that all-star roster playing with my favorite band. I compiled a short list of songs to sample every auditionee's work, and some of them became my favorites.
My list of favorite drummers would be: (probably I'm missing a lot of great drummer's I'm not familiar with, and some of my impressions might be flawed for my lack of knowledge about the instrument)
1. Marco Minnemann: an absolute monster. He has great style, technique and most of all creativity. He's also mindblowingly diverse: he plays jazz in his instructional videos, auditioned for Dream Theater, played with Necrophagist and is a more than capable songwriter. And in addition, he is this type of quirky-always smiling guy, the kind of personality I love. I haven't heard his work with The Aristocrats but I'll do that as soon as I can.
2. Billy Cobham
3. Mike Portnoy
4. Vinnie Colaiuta (talk about diversity here!)
5. Bill Bruford
6. Virgil Donati
7-10: Thomas Lang, Roger Taylor, Dino Campanella (Dredg) and Mark Heron (Oceansize). The last 2 are criminally undrerrated IMO.
For some reason, I'm not a big fan of Gavin Harrison (I think he doesn't go crazy enough, sometimes he sounds restrained although he's a master of intricate rythms) or Neil Peart.
I would say that drumming is one of the most difficult aspects of rock music to appreciate, since it is rarely at the front and its intricacies don't cause an immediate impression as the keyboards and guitar do. Anybody agrees?