IMO Rivera is a no-brainer HoF inductee and this comes from a guy who is no fan of the Yankees. He was just ridiculously effective as a closer. When you are in the conversation re:the best ever at your position you have to be in the Hall.
I also this Lee Smith has a sold case. Baines, not so much. Not while Hodges, Allen, McGriff, & Mattingly are on the outside looking in.
Hall of Fame debates are always interesting to me. As long as they remain civil.