I don't there's as many question marks about him after the fight with Salido. I'd say Kovalev and Gary Russell are definitely up there as mentioned above. For me also: GGG, Stevenson, Keith Thurman.
And why exactly does he need to fight on "foreign" soil. Everyone comes to America because America is the mecha of boxing. Everyone knows this. Ward is also the champion of 68. He doesn't need to give into Froch's stupid demands and go to Britain where he can be robbed by corrupt UK refs/judges. Everyone knows the UK refs/judges can't officiate/judge for ****.