Oh yeah, rankings. (Newly updated since I finally decided on Peace Walker's position!)
3 > 4 = 1 > 2 = PW
PW is great but I can't really bring myself to put it above even 2. The narrative is good, but it's not really put together as well. Combine that with extremely non-personal boss battles (though Peace Walker itself and Zeke are A+++) and I can't give it better than being equal with 2.
--
Falcon Punch
http://www.youtube.com/watch?v=FFtw7qW7Vcw