My memory might be fuzzy here but I found the renegade choices to be pretty lame for the most part. They were like being a dick for the sake of being a dick in a lot of cases and I didn't really feel like there was much of a reward for going that way.
The paragon choices kind of felt more like it was how the story and character was written, if that makes any sense. It would have been cool to see some more actual hard decisions.