san antonio is the better team because duncan is the better team superstar. so it really depends on how you judge how a player is better 'individually' than another. for all intents and purposes we can say stephon marbury is a better point guard 'individually' than, say, chauncy billups.... but do you think detroit would've won a championship with steph? maybe, i dont know, but probably not.
although i know many would disagree, this is only my personal opinion, so if you do you do..... i think td would do better than kg in minny. for one, kg seems more like a small forward then a true post player..... in the mold of a grant hill who plays a little closer to the basket.... or even a chris webber. he is great no doubt, in fact probably top 10 all time (dont quote me on this), but history says that true post players are the type to build around. not players who masquerade as post players (see elton brand), but true post players who play deep down with their back to the basket or faced up. that said, garnett is a great true post player, but he does not focus his game on that facet of his talent as much as td does. i dont care if you can do everything.... do what it takes to win.
that said, this is all moot, because this is all hypothetical.....lets stick to reality a little should we? there is no way said scenario would happen, minny needs wally to step up a lot more than he has, i like hudson at the point, and mccants has potential. kandi man seems to be playing a little better given more responsibility, and eddie griffin.... if he can own up to his potential would make up a monster front court with kg. in fact imagine if minny fielded a roster like such:
kandi
garnett
griffin
sczerbiak
jaric
the shortest guy would be 6'7

this team needs a little time to mold together and create a solid identity or system, hopefully they'll make the playoffs.