Choosing Philly or New York is like choosing between getting stabbed versus shot - neither are wanted nor desirable. Pretty much the same with OKC versus LA, though at least with that one there's the historical rivalry to make OKC more desirable, despite them being an unlikable team, too.
The other two series are more interesting. Both Detroit and Cleveland are likable teams. I like Detroit as the underdog more, as well as being a big Cade fan. However, I'm with Moranis that I think Cleveland has the better shot of beating either Philly or New York, which should be the primary aim. Also, Donovan and Allen are very likable players, with Mobley the same to a lesser extent.
As for Minny and SAS, Minny is the clear desirable winner for me. While I like SAS' team as a whole, I'm already tired of Wemby' schtick and the hype he gets. Minny also has the underdog theme going for them, even with the exaggerated praise and hype that Ant gets.