If it's not in their respective primes, but at the time they played, here's my list.
1. Jordan
2. Lebron
3. Robinson
4. Bryant
5. Malone
6. Durant
7. Barkley
8. Johnson
9. Bird
10. Pippen
11. Drexler
12. Stockton
13. Ewing
14. Paul
15. Mullin
16. Love
17. Anthony
18. Westbrook
19. Williams
20. Harden
21. Griffin
22. Iguodala
23. Chandler
24. Laettner
Kobe seems awfully high on this list, IMO
Drexler had arguably his best season that year - I would nudge him up the list if that is to rank them as they were 'at the time'. He probably should be up close to Durant. Again, that's based on how these guys were playing 'at the time'.
Johnson and Bird were both still great, but way past their primes.
Kobe is similarly still a great player, but he's not the dominant player he was 2-3 years ago. And back in 92, Karl Malone as a freaking monster. I'd rank him above Kobe on that list.
In these comparisons, you have to caveate a bit that the game has changed quite a bit. Especially with referees' extreme coddling of superstars.
Michael Jordan didn't get the 'Jordan Rules' kid gloves until his final 4 years. Prior to that he was called for fouls at a league-average rate. Similarly, the rest of the '92 gang were called at least within a reasonable rate of league average.
Durant and Lebron, though - and especially Lebron - has been completely coddled by officials since he came in to the league. His PF rate his whole career has been so low it makes Jordan look like Bill Lambieer.
This sorta change in the game - along with others, makes it hard to compare eras.