Great players:
Totti
A. Del Piero
Giggs (and probably a fair share of players from small to minnow-level countries. Possible examples include Weah and George Best.)
A number of otherwise highly rated Italian defenders were generally behind even greater players in the pecking order for much of their careers (specifiically Ferri and Vierchowod, and arguably guys like Benarrivo and Panucci).
Di Stefano has that reputation, but I'm not entirely sure it's quite accurate.
Good:
Dybala
Icardi
Le Tissier
McManaman
Edmundo
Rai (famously, despite initially building around him in 94)
Elber
Any number of English and Italian forwards from the Nineties (Zola and Signori may be the most notable)
Jimmy Floyd Hasselbaink
Roberto Pruzzo won Serie A top scorer three times in the Eighties, but only won six caps in his career. That's literally all I really know about him, though.
I've had to go through some oddly specific hoops to push this post through. (It literally wouldn't let me get away with just posting "Del Piero" sans the "A.", presumably due to heuristics as a restricted poster. It's not really a unique example.)