Well, if we take the movies as being absolute canon, then SW.com is deffinately the best. Followed by the novels. And then the comics.
Wookieepedia, I think, is awful and should be shut down, I feel sorry for the newbie who stumbles across them and thinks they're a good source of info.
A site I kinda like but haven't spent a lot of time at is tfn's Unofficial Encyclopedia. http://theforce.net/swenc/
And I know my site isn't all that big yet, I still do my best to make it canon and it does have some useful information on it: http://www.starwarsdotcom.com That's it's purpose, is to have useful information. I try to make it simple and easy to use, nothing flashy or bright. I'm still working on the navigation, I recently realized I have no back buttons anywhere, so I've been putting them up for even easier usage. I know some of those sections are only half done. But I do work on it now and then.
Reality doesn't care if you believe in it.
[url]http://www.townparkradio.com[/url] - Video Game Remix Music