Ok, I think I've have enough of the KG of '00 vs KG of '04 vs KG of '08 comparison.
I personally believe that KG is not the player of Pierce's caliber in any year.
Here's why ... the ultimate excuse of KG never leaving the first round of any western conf series was his teammates.
Yet, how mediocre were Pierce's teammates when we beat a 2003 Pacer's team with J O'Neil, Tinsley, and the Millers? And realize, even that Cs squad was a notch below the Kenny Anderson/Rodney Rogers over-achievement of '02. Seriously, since Pitino had left town, the C's had overachieved up until the '05 post season.
On the other foot, on a year by year basis, KG was considered one of the great big men of the league but then again, aside from the Spree/Cassell year, he was never able to advance because somehow, his other 4 players weren't good for anything.
Then in '08, that fabulous championship year ... why on earth did we not close out the series in LA in game 5? KG himself said that his performance was 'garbage' in that closing important game.
And likewise, wasn't it really Posey/Brown, who did the defensive magic of that game 7 against the Cavs, with Pierce lighting it up everywhere on the court.
So when we win a title, we have a "top tier" big man but on his sides are other big men like Perkins, Posey, Brown, Powe, & BBD? Well ... if Pierce and Walker had these fellows, along with Rondo (backed up Cassell, TA, or House), skipping Ray Ray, in the years from '02 to '05, we probably would have been ECF champs as well, and maybe even an NBA champ in one or two of those years.
Here's how I really feel ... Kevin Garnett is a closet Patrick Ewing but unlike Ewing, he had Paul Pierce, in place of John Starks, to help him win a title. Yes, on his own, KG will lose it, when the game is on the line. This is the Ewing effect and I see it in Garnett.