well, looking at behaviour of the fans of these stars on the forum:
Salman Khan's fans have constantly insulted his family, one of them said that he will make Salman beg on a signal and also wished he was never born, plus another called his dad "ittu sa writer", so definitely not Salman.
Aamir's fans have generally been very loyal. Rancho complains about the volume of his movies a lot, but otherwise has total belief in him. Some others like kashyap are fanatics.
Akki doesn't have that many active fans here, but the ones that are here are cheering him on and happy with his approach.
I would go with Aamir fans from the above options, as they have been constantly active and have not insulted him at least.
Though I would say, blind loyalty is not always a good thing.