Somewhere in between Bobby Simmons, and JR Smith?  He also reminds me a bit of Danny Granger...although shorter.

Bobby Simmons because of his tough play and playing bigger than himself.  JR Smith because of his athleticism and ability to finish at the rim, combined with good outside shooting...but not a whole lot in between.

JR Rider

Caron Butler.

Andre igudala

James Posey with Tony Allens athleticism.

Giddens is way more athletic than any of the previously mentioned names.  Just wait and see.  Giddens is a stud.  We won't be missing Posey.  Don't compare him to Tony Allen.  He is a little more athletic.  He can finish better, and plays d just as well if not better.  BTW, post and pre injusry Tony Allen's jumper was crap.  More so now, mostly due to post injury confidence.

I don't know a whole lot about giddens but comparisons to bigger SFs like Butler, Iggy etc are surprising. I had in mind an eddie jones type.