I'm pretty sure KJ averaged like 18 and 10 for his career (those #'s might be slightly off, better than Chauncey's). Took the suns to the finals one year (along with Charles obviosuly). Was all NBA 2nd team 4 times and All NBA 3rd Team once (Better than Chauncey). He doesn't have the championship on his resume but I'd say he's pretty comparable.
You made the BIGGEST point for Team Billups. Billups is a floor general dude has been playing ball in May for years now. I think he gets in maybenot first time but he gets in.
Chancey is one player where his stats don't indicate his inpact at all and I generally call %%+@*!@% on intangibles but the traditional PPG, RPG APG don't tell you his level of efficiency when he runs the point.