For me Dembele is the best footballer in the squad, I think Capoue is better than Sandro (when played as DM) as he offers more going forward, although I have to admit that is based largely on his pre-injury games.Already a better player than Paulinho and Capoue by a good margin. Even at least with Sandro and Dembele on their current form.
I'd start bentaleb over Paulinho every time. If all were fit and available in a 4-3-3 it would be Dembele, Bentaleb, Capoue.