Not at all if you don't indulge in typical internet hyperbole. I thought both were great because of their differences. GTA 4 had a good story and has some of the best DLC of this generation. Saints Row 2 was just pure fun, a great co-op game and had Eliza Dushka's sexy vocal work.
Anyway I look forward to more Saint's Row, hopefully somewhere other than Stillwater though.
All the eurogamers who actually play with each other on xbl rather than just post pseudointellectual pc handwringing bollocks on the forums, love the shit out of biggy.