GameFAQs
First FAQer to achieving over 10,000 KB on GameFAQs! His guides are also very informative and detailed as well.
BTB
Least numbers of FAQ contributed for a prolific writer. Also for having the most profanity FAQ ever, his FInal Fantasy VII FAQ.
SinirothX
Wrote the biggest FAQ on GameFAQs. Final Fantasy X FAQ/Walkthrough = 2000+ KB!
Jim Chamberlin
Most FAQs Contributed to GameFAQs. 278 in all!
FAQs : 216
Final Fantasy X
FAQs : 107
Final Fanatsy VIII
FAQs : 102
Super Smash Bros. Meelee
FAQs : 98
Capcom Vs. SNK 2
FAQs : 94
All splits FAQs counts as one whole. This includes foreign language FAQs too.
Moments