You forget one IMPORTANT thing, that you're not really comparing apples to apples here. Those PGs are in a different team structure & role.
You can argue that CP3 has better court vision & passing ability than Tony, but Chauncey & Deron are IMO in the same class with Tony regarding those attributes -AVERAGE. They seems having higher APG simply because of those factors mentioned above.
About shooting touch, both of them are only better & more consistent from the 3pt land, but not any better from 22' in. Gotta admit, that Chauncey is a proven clutch player, so while he can be streaky, he seems to hit the shots in the important games or moments, so the reputation goes beyond the deed.
Chauncey is better defender against bigger PG or smallish SG, but he will get killed defensively by quick, agile PG of the league. Deron, hmm, i can see him turning into a better defender than Tony if he really puts his mind into it, but at this moment he's still not all that consistent (but he's definitely more rounded in this department, i'll give u that).
Strength ? Never been Tony's advantage, and won't ever be. But then not many guys are blessed with his speed, and even more rare that has ball handling skill & finishing ability in the paint like him, so it's a moot point ( peeps will always have their strengths & weaknesses, it's just the matter of maximizing your S and working with your W -example, keep going fearlessly into the paint and work hard to improve your jumper).
Bottomline, outside Nash & Kidd, there is no real conviction regarding the 3rd best PG of the league. Perhaps in the next 5 yrs, we will get more of a consensus about this issue, since both old guards of PG spot would perhaps have ended their carreer, there's gotta be the new numero uno, right ? Hey, who knows, Devin Harris could perhaps land that le for your team, that wouldn't be a bad consolation if your team could never win the championship in that time span.
