ESPN has done four features in this "Signature Shot" series, which analyzes different players' signature shots. I enjoyed all the features except for Nikki V's. She didn't tell me anything I didn't know. Blake, JJ, and Venus' features were all so interesting from a technical standpoint.
James Blake's Forehand
Jelena Jankovic's Backhand Down The Line
Venus Williams' Return of Serve
Nicole Vaidisova's Serve
I would love to see ESPN do features on Fed's one-handed backhand, Nadal's two-handed backhand, Nole's serve, Ana's inside-out forehand, and Maria's two-handed cross-court backhand, of course, Marat's racquet slams.