Shaquille O'neal, Allen Iverson and Yao Ming really deserve to be in Hall of Fame, even though Iverson and Yao has no rings. Yao has the shorter carreer of those 3 because of injury but he is really a dominant in his stint.
Shaq and Iverson being inducted is no surprise, Iverson didn't get a title but he was very close with a mediocre Philly team against much better ones like Lakers, Spurs, etc. Yao Ming career was a little dissapointing in the sense that his potential was huge, he lacked a little personality in my opinion being a chinese player among NBA superstars but he still held its own and it was a major force in the league when healthy. I remember him putting some monster numbers, stats line like +30 pts, +15 rebs, +4-5 blks were very common. You don't have centers like him or let alone Shaq anymore, the closest thing was Howard at his prime.
On the other hand the game has changed an evolved to a more perimeter focused one so it makes sense. But I would love to see young Yao or Shaq play against the Warriors, Cavs and other teams and see if they could impact today's game dynamics the way they did back then.