My vote goes to Eric Wynalda.
As a player, he was brash and played with a chip on his shoulder. As a commentator, I get the feeling he doesn't care much for establishment rules.
That's what we need. Someone who isn't afraid of change. Someone who isn't worried about failure before trying something new.
He's young so he'll connect with the younger generation and plot for future success.
Plus, can you imagine Tab Ramos partnering with Eric Wynalda again?