BY JOHN G. AVILDSEN STARRING: SYLVESTER STALLONE, TALIA SHIRE, BURT YOUNG, BURGESS MEREDITH, CARL WEATHERS, THAYER DAVID and JOE SPINNELL It’s hard not to like Rocky Balboa . Anthony Gazzo ( Joe Spinnell ) would agree with me in spite of the fact that his star henchman hands a fair share of