I found Kelso far more likable and "cool" than Phelps, especially late game. (In my opinion) Phelps is complete scum. The cheating on his wife, and hurting his children, with a German dope fiend and the various flashbacks you witness while playing solidified my mindset. I was glad he died come conclusion, and the 1 man he couldn't stand come midgame was giving a speech and offended his "squeeze".
Nah, those are a few of the reasons I actually liked Phelps.