A couple of guys everyone always overlooks primarily because they spend most of their time toiling in the background of studio sessions...Steve Gadd (Steely Dan) and Jeff Pocaro (unfortunately he's dead and worse, his most commercial and best know work was with Toto).
There are the classic big band guys:
Louie Bellson, Buddy Rich and Gene Krupa.
And of course currently as far as innovation and versatility are concerned Carter Beuaford picks up where Neil Peart and Stewart Copeland left off.
Unfortunately too many drummers gain noteriety due to their band's popularity and the fact that they are solid metronomes who do not detract from the music by overplaying (critical skills none the less and a category I place myself in (sans noteriety) along with Charlie Watts and Ringo Starr as examples). However, the truly great drummers enhanced the musicality of the band and the songs and were just as vital to the melodic content of the music as the piano, bass, guitar and singer.
Just the musings of someone with Traps in his blood.