It's hard to differentiate between disliking the fighter or the fanbase the fighter has.
But for me:
Gegard Mousasi the guy is just shit all around he fights like shit, looks like shit and acts like shit, his I don't care attitude feels so forced and he just comes across as lazy yet his fans see him as this god and all I see is a lazy ass slow fighter who struggles with elite guys.
Yoel Romero is so horribly over rated, he is slow and can't strike for shit the guy looks like he gasses after two minutes.
Demetrious Johnson seriously why do they have a dwarf division?
Luke Rockhold, the shit that comes out of this guys mouth is comical and thank god Bisping knocked his old looking ass out and his missus pied him off.
Kevin Lee is just a
Sage Northcutt, this kid is just annoying to me he is a typical white, blue eyed American poster boy who won't stop fucking smiling and it bugs the life out of me thank go he loses all the time.
Tyron Woodley, everytime he opens his mouth I think shut the fuck up you over privileged whingy fairy, there are literally thousands of starving children in Africa and you winge about being mistreated yet no one mistreats you and you have a very comfy life from where i'm sitting.
And fuck any fighter who thanks god for his career or win in general seriously get lost with that garbage.