Ricky Steamboat is a former World Champion....look it up NWA World Champion. Had mat classics with Ric Flair. Also Curt Hennig & Scott Hall are both former World Champions too. AWA World Champions. Again look it up. And if anyone says the AWA doesn't count think again. Back in the days it was all about the NWA & AWA. If WCW World Title reigns count for something then so should AWA & NWA.
Oh yeah, Rick Rude is also a former World Champion. He beat Ric Flair for the NWA Title the day after WCW severed its ties with the NWA. The NWA doesn't recognize the title change, but check out the archived footage and you'll see some old WCW footage with Rude wearing the Big Gold Belt. They called in the WCW International Title for awhile until they finally had Flair win the WCW World Title and then Rude & Flair had a unification match that Flair came out on top of.