It doesn't matter.
If you can take a team with Keith Van Horn as his best offensive weapon over good teams like the O'Neal/Miller Pacers, Davis/Mashburn Hornets, and Pierce/Walker Celtics, and considering their team won 26 games the previous year in the Eastern Conference at it's "worst" point. You can't help but be impressed. If you put Nash on that team, they problay would make the playoffs in a lower seed, but they wouldn't be the #1 ranked team.
If you want to argue that Nash had a better supporting cast around in in those seasons, then Jason Kidd in the Nets, then you recieve no arguements from me. Jason Kidd would make decent or above average talent look like all-stars. Marion and Amare were already all-star level players when Nash got there, and Q-Rich was a damn good player also. I always thought Boris Diaw was going to be a good NBA player, he just wasn't giving the chance or the miniutes to prove himself in ATL. I also think that Mike D'Antoni is a better coach then Byron Scott. All Byron Scott would do is leave the work up to Eddie Jordan.
I think you put Jason Kidd in those prime years, or even now in the Suns, I think they would be a much better team. Jason Kidd would give them the defensive strength they need in the backcourt.