Please don't flame me..........
Universal's AP rates are cheaper. However, they only have 2 parks and CityWalk, not 4 parks and DTD, Pleasure Island, West Side, Cirque, Water Parks, etc.
I have both, and I find that after the Universal parks close at 7 or 8 in the evening, I still have energy left, but don't want to participate in the "party" atmosphere at CityWalk. I know that it's my choice, but there could be better alternatives........
We just got back from a long weekend at the Universal Resort complex, and found that after a couple of days- we ended up at Disney when the Universal parks closed.
So although we'll renew our Universal APs, we'll also renew our Disney APs (and we do the cheap Disney AP).
Just a thought.......