[Boogieman]

Good king? He wasn’t even supposed to be king. He was supposed to tend the throne until his brother’s kids got old enough. Instead he had the kids declared illegitimate, crowned himself, and the kids were never seen again. Sounds like a real bastard to me.

[Bridesheadfan]

All the more reason to have the Mass said for his soul. If he was lucky enough to make it to Purgatory, he needs it!

[JCBreckenridge]

So says Henry VII, the last man to see the children alive, after he defeated Richard at Bosworth. Oddly enough, the usurper claims Richard killed the children.

[Cronos]

well, a boy-king in a time of troubles is not a good idea. He may have started out with the right intentions to keep the kingdom strong during a time of strife

you can read the wikipeda entry for his reputation which talks about the pros and cons -- http://en.wikipedia.org/wiki/Richard_III_of_England

essentially, remember that the Tudors did use propaganda against him. Perhaps he wasn't a saintly one, but he was not as bad as the Shakespearean character