Michael Clarke is an obvious choice, it will be an interesting decision. It generally goes to a batsman, or a spinner sometimes, and Cameron White is indeed one of the best captains in Australia, and very young too!
His batting has progressed a mile in the last couple of years, and he could definitely make the team one day on that alone, his bowling is pretty limited and predictable, he averages like 3 wrong uns and over and doesn't get too much turn, but it's around Symonds' level I suppose.
Other possible candidates could include Marcus North or Adam Voges the WA boys if they can make the team on a consistent basis, and I guess that Nathan Adcock is a chance if he can make the team too.
Symonds and Lee have no chance, both are at ages that without any captaincy experience or vice captaincy experience, they would not be considered.