If your internal reasoning parallels comments such as "PER and everything about Hollinger is stupid," then it will be hard to have a rational debate with you, my friend. PER certainly doesn't tell the whole story, but writing it off as "stupid" is just plain ignorant.
"Furthermore," your use of hypotheticals adds no real value to the debate. You can argue till the cows come home about what Kidd might have done. It's what you HAVE actually done that matters. But, if we're going to open up the discussion to hypotheticals, I could argue that Nash would have won a championship if he were playing on those New Jersey teams with Kenyon Martin (pre-injury) and Jefferson. One of the major reasons those Nets teams couldn't win in the Finals was because defenses dared Kidd to hit the long jumper and he couldn't deliver. Defenses could then help off Kidd on Martin and Jefferson. Wouldn't have happened with Nash. And Nash is every bit the playmaker that Kidd was in his prime. In fact, as good a passer as Kidd was, Nash is a better passer.
1) I was somewhat facetious with the 'PER and Hollinger are stupid' comment. Okay, so Nash is more efficient than Kidd. That said, PER has limited abilities in accounting for defense, which Kidd is exponentially better than Nash at.
2) Fine, no hypotheticals (though how is it possible to compare two players playing in two different systems?). Let's look at what they've done:
Kidd:
9-time all-star
Rookie of the Year
9-time 1st or 2nd team all-defense
5-time all-NBA 1st team
1-time all-NBA 2nd team
5th all-time in career assists per game
9th all-time in career steals
2 NBA finals appearances
Nash:
6-time all-star
3-time all-NBA 1st team
1-time all-NBA 2nd team
2-time all-NBA 3rd team
11th all-time in career assists per game
2 MVP awards (my bad...)
0 NBA finals appearances
Sure you could argue that Nash played in the West, which has tougher competition, but I think the statistics speak for themselves. Furthermore, who would you want to build your team around? Steve Nash in his prime or Jason Kidd in his prime. If I am looking to play both offense and defense, I will choose Kidd.
Gary Payton was better than both
NBA Champion: 2006
9-time NBA All-Star: 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003
9-time All-NBA:
* First Team: 1998, 2000
* Second Team: 1995, 1996, 1997, 1999, 2002
* Third Team: 1994, 2001
9-time All-Defensive First Team member: 1994, 1995, 1996, 1997, 1998, 1999*, 2000*, 2001, 2002 (shares record for selections with Michael Jordan)
NBA Defensive Player of The Year: 1996 (only point guard ever to win the award, and only guard to win the award in the 1990s)
I take Payton in his prime over either of those guys. He would own you on both ends.