While waiting for the debate...
I'll throw out this fact: Of my Chess 960 opponents most recently online eight out of nine of them have higher standard chess ratings. What explains this? The obvious fact that many Chess 960 players have actually played much more standard chess, so that their standard chess rating has had more chance to creep up, does not fully explain this -- no, far from it!
I am usually not one to debate, I'd rather get the facts out there that everyone can agree with... but this is a topic that leaves room for debate!
I think that Chess 960 is a better measure than standard chess -- played as blitz, bullet chess, 3-day moves, etc., or even standard chess played in live tournaments. For me, I have no doubt about that -- the question just is why?
The immediate answer is two-fold, and many miss the second point: 1) The Chess 960 positions are random; 2) the great majority of those positions, but not all, have assymmetry between the left and right sides of the board. This is the crucial second dimension. What do you think?