Personally......watching a lot of matches is the only way to go to properly stat a wrestler. I try to watch matches where they were in main events, and then the squash matches as well as its usually all offense for them in these. I do a lot of 80s guys so I try to watch a matches say spreadout in 82.....then 84.........then 86, just to see how his move set, attitude, finisher, etc has changed or evolved over the years. With wwwnetwork this has become a lot easier than it used to be.
This is a lesson not just for wrestling but for Wikipedia in general (though it probably applies double for wrestling articles for a number of reasons): it's a great overall resource, but never take anything from it as gospel unless you can corroborate it with another source. A decent article will provide and cite the source for you--try to verify what it says, and cite that if you're in an online discussion instead of the Wikipedia article.