I disagree that "it's not even close." The only one of this categories that you listed where he has an edge of Rondo is "scoring." On the other hand, Rondo has the edge in defense and rebounding.
It's close, but, yeah, Paul is still slightly better.
It really isn't close...
Chris Paul plays far less 'risky' basketball. He doesn't cheat on defense for a quick steal (often opening up offensive opportunities for the other team) and he rarely turns the ball over.
Rondo plays more 'flashy' then Paul, but Paul is more fundamentally sound.
Rondo's decision making is also not as good as Paul. Rondo is still inconsistent - sometimes he makes great decisions, sometimes he makes very questionable ones. This includes shot selection as well.
Rondo is a little bit better than Paul (over their careers) as a rebounder. Both average around 4.5 per game over their careers.
As for scoring, it's not by a small amount...Paul is so much better a scorer than Rondo it's not even funny. He has one of the best midrange jump shots of any PG not named Steve Nash, he's an excellent 3 point shooter, he's a near perfect free throw shooter, and he's excellent at scoring off the dribble. Rondo is only really good at the latter...though when he improves at the other areas (which he already is) the discussion will be much closer.
D-Will is the only other PG you can really throw in the agument, and IMHO he's no longer on the level of those two guys.
Derek Rose (as a pure PG) is not even close, likewise Westbrook.