I'd be interested to know exactly what you dislike about him...
It was mostly a tongue-in-cheek comment. I don't hate the guy - though I know many football fans that do (ND and otherwise). Reasons are often related to his personality in interviews or press conferences (doesn't bother me) and perceived issues with oversigning / medical hardships is also a popular one. I'm not attempting to debate what's right or wrong there - just giving you an idea of what many football fans point to when they talk about not liking Nick Saban.
For me, the way he left the Dolphins was tough to stomach. I understand that he's not the only coach to do what he did and I appreciate the fact that I recently heard him say he feels as bad about the way he left Miami as anything that he's done in his professional career (paraphrasing). You have to respect when a guy makes a mistake and owns up to it. Still, doesn't mean I have to like him. Regardless, never heard anyone debate the fact that he's a heck of a coach.