I'll roll back to some older wrestlers, since almost all the modern era ones have been said, that I've watched and read about for some time that clearly deserve a place in the Hall of Fame, even if it's hardly prestigious.
Bruiser Brody - He was a true mad man. He wrestled all over the world, and put on some of the best matches I've seen, from that era. He still has a profound impact on wrestler, Luke Harper even wrestled with a Brody-like gimmick, and even used his name while on the independents. He was one of the best brawlers in wrestling history and his matches with the Funks, and Hansen were legendary.
Toots Mondt - The most important name, I'd presume, in wrestling. Not sure how he hasn't made it into the WWE Hall of Fame since he can be considered one of the founders of "Sports Entertainment" and was a founder of the WWWF.
Ivan Koloff - Probably the most impactful evil foreigner the WWE ever had. He broke the longest reign in WWE Championship history. He caused near riots, and was a menace, just by his looks. But I don't think we'll ever see him in the Hall of Fame, after he joined that concussion Law Suit.
I mean, I would put The Rock on that list. He was inactive for so many years in the WWE, and I do wonder why he wasn't inducted in the time of 2005 - 2011, but he will headline the Hall Of Fame in the future.
He obviously intended to return to wrestling, and didn't want to go into the Hall of Fame without being fully retired.