I believe in the majority of games, where we need to breakdown the opposition, Gundogan is currently our best 6.I don't like Doyle at all as a 6, but imo if Rodri was playing at 6, then Doyle, given a run in the team, would be better than Gundogan in everything other than volume of passes.
I think the one to work out is who plays between Gundogan and Debruyne. In the two games Foden has played there this season the games have ended up like a basketball match. I believe our best option would be Bernardo as the second of the three players in the middle because he seems to better link defence and attack.
I also think this is Doyle’s best position, at least currently. He’s been pretty poor as the 6 for the EDS. Hopefully he gets a crack as the 2nd midfielder in one of the upcoming cup games or even in the league against the likes of Fulham or West Brom. The only way we’ll know is if we give him a fair chance. If he takes it then he could stay in the team because that part of the pitch isn’t functioning very well.