The 1990 team went to the WCF without Barkley. In fact it's fair to say that Barkley did not elevate the Suns' postseason performance; they won a total of five series in three seasons.
I know, I was just posting a non-sensical hypothetical that is impossible to prove or disprove because that is where this thread has gone.
The biggest difference for me is clutch play. With the game on the line we went to Charles, a lot. Amare was great and I loved him as a Sun, but with the game on the line I would take Charles. Other than that I think they were pretty even and it's a great debate to have.
And for the record as long as we are being hypothetical, I really think if we have Amare that season we win it all. Then again if we had Amare in game 6 against the spurs,,, grrrr. Anger, building, must not think of suns past... lol