There's a huge difference between best franchises, and most influential. Huuuuuuge difference. It's asking for the best series, not the most influential. Most influential, then for sure Street Fighter. Not best, though.
I agree with the top 3. Overall a decent list. edit- wow, what a lame computer, gives me a double post 10 minutes later :/
I think Tony Hawk should be on there. Then again, im not really a hardcore gamer so who cares what I think.