Actually he is really dislikeable the few times he opens his mouth, bought totally into the Scouser propaganda machine and there were numerous stories from when he was at City about his bad treatment of club staff (the source here is Blue-moon and twitter so not the greatest reliability but you'd think people would know more about these type of things rather than say, transfers)
In fact I'm not sure I dislike any former player more than him based only on how he comes across, and then I remember Sir Joseph of Barton