he bangs in the goals, that's all you need. also pretty impressive stories of coming back stronger than ever from long injuries etc, I personally think Pippo too is greatly underrated... but in terms of skill/range trez is definitely better but Pippo does his job best despite the tap ins and offsides, people wont care as long as your striker gets you the points.
I love Trezeguet and this coming from a Pippo fan since he pushed superpippo out, it sucks football in general is lacking these type of players.