Thanks for the responses, guys. Yeah, I guess by "pure ball striking ability" I didn't necessarily mean shotmaking, but rather the soft hands and ability to hit the ball cleanly and consistently, wherever you choose to put it.
I was watching Agassi's 2000 Australian Open semifinal match against Sampras and I wondered if I don't actually enjoy watching Agassi at his best more than Federer!
Racket: Head Youtek IG Speed 18x20
String: Luxilon Big Banger ALU Power 16 (mains), Technifibre X-One Biphase 16 (crosses)