I'd have to say Sandro, though it is too early to tell with Walker and Caulker.
Bale could well end up being one of the world beaters - and probably will - but I'd say Sandro has a touch of the Viera about him, and when he's at his peak he'll become the stuff of legends.
Bale is already a world star. Sandro and Walker are very much in the 1st team plans... so what potential? They are all wanted by the biggest clubs if available. Caulker? yeah sure he has potential. He is playing well in a Swansea team that is doing well in the league.
Bale. Showed yesterday he could even play as a CF if required. Caulker and Sandro both have very bright futures, though. Remains to be seen whether Walker stays as a RB, but he's certainly very good.
I think it is a no-brainer. As good as I think Sandro will be, he is not in the same league as Bale. Bale is a special player.
But it's not.
The question was who has the most potential and not who will be the best player. If it had been the latter, I would have voted Bale. But, as he has shown a great deal of his ability already, and been in our first team for longer, I class that as proven ability and not potential.
I don't think its tough at all
Bale is looking like becoming one of the very best players in the world
Potentially Bale is a superstar - a la Messi or Cristiano Ronaldo. So I don't think people are confusing proven ability with potential. He's not there yet, but he could be.
Also, Sandro could be one of the best central midfielders out there too. Our answer to an Essien type midfielder, all-action.
So yeah, it's a tough call. But what a debate to be having!