When I first read the title of this topic (or similar types of topics) one character always springs to mind before anyone else....... Brucie. This guy is a prick, the game didn't need him at all and it's the one stain on GTA IV in my opinion. Then to make it worse R* threw fuel on the fire by introducing his brother, I can honestly say these are the few moments that I have truly been disappointed in R*.
As for Trevor (as I was skim reading this topic) it does seem not many people like him. I was the same after the first playthrough of GTA V. He was a OTT character and felt like he was in the game solely to please the GTA SA crowd. However after playing through the game a second time I did warm to him more than the first time. Is his character deep and meaningful like a Niko Bellic? Not even close. I would say that he does have a place in GTA V though. He does have somewhat of a meaningful backstory (not that meaningful though) but his sole purpose is the bring light relief to game and to remind us that at the end of the day GTA V is a game and should be treated as such. He has a place in GTA V in my opinion and doesn't really deserve alot of the hate he seems to recieve.