I read a ton, and I enjoy the WarCraft novels for what they are - tie-in stories set in a world that I really enjoy. It probably is asking too much for them to be equal to other creative works, because when you think about it, the people who write the WC novels aren't given much creative freedom, and I don't think *any* creative person does their best work under what must be some pretty specific guidelines, to say nothing of working in a world and with characters that they didn't create.

If you like fantasy, though, I can highly recommend Jim Butcher, if you don't already read his stuff. ^_^ The Dresden Files series is great urban fantasy about a wizard working as a detective in Chicago; the series is currently at 13 books and keeps getting better as the stories and plots slowly get bigger. Also, Butcher's Codex Alera series is fantasy with a world setting that's more Roman than Renaissance, with nifty elemental-based magic and lots of political intrigue, as well as a lot of army-based stuff in the later books.

Granted, Mr. Butcher has become one of my favorite authors, so I always recommend his stuff.