As I understood the question, it was as he was growing up. Plus most of those players were from AFTER he moved to Chicago.
FWIW, I bet he couldn't name three current Cubs players, either.
Oh, and just in case someone wants to call me out on MY faves:
ANGELS Faves: (all-time)
Bobby Witt
Jim Abbott
Chuck Findley
Gary DiSarcina
Garrett Anderson
Nolan Ryan
David Eckstein
Current Angels faves:
Mike Napoli
Joe Sanders
Howie Kendrick
Torii Hunter