I've been playing fighting games actively for over 5 years, and know what I am talking about in the games that I play. I've written several character guides for the games Real Bout Fatal Fury 2 and Samurai Shodown 5 Special (Available from the Shoryuken forums and Heavenly Spirits website, respectively). I also play or used to play The Last Blade 2, Street Fighter Alpha 3, Garou: Mark of the Wolves, and Street Fighter 3: Third Strike. Nowadays I mainly play Street Fighter 4 however.
I play SF4 on GFWL as God two nil, maining Dictator. Feel free to invite me to a match.
All frame data used in my SF4 move analysis entries are taken from the frame data charts available on the shoryuken wiki. These are not my own findings. If there are errors in the frame data charts, then my entries will have the same errors, so beware of that.
Also, any stamina, stun, and dash frame data information, as well as any tiering information I use in my entries are taken from the Street Fighter 4 section at www.eventhubs.com.
http://www.eventhubs.com/guides/2008/oct/05/stamina-stun-dash-and-jump-rankings-street-fighter-4/