Booker T has about 4 finishers:
Bookend - Too bad only the Rock can do this move
Brisco Sunsetflip - I wish Booker T would use this more often and in tag team matches this would be perfect.
Axe Kick - I really don't like this one, but it fits the WWE style with his setup of BAM kick to mid-section then the AHHHHHHHHHHH war-cry and the finish.
Missle Dropkick - Could be used for near falls.