Objectively Hogan should be the #1 pick until 1999. Obviously there was money in a heel turn which hadn't been approached in 1988. He just came off the widely successful Andre feud and was headed for Savage. If you stayed the course with the Savage feud but threw Flair in the mix I think we'd have a very compelling end of the decade.
Obviously we all know Hogan/Flair was headlining Mania but what about the undercard?
Obviously someone didn't read the thread because Hogan/Flair was never planned for XIII.
If we're just fantasy booking, I would put Jake and Savage in either a Cage Match or a Snake Pit Match to settle their feud. My idea of an I Quit Match where Savage gets Jake to quit by using a cobra is probably a bit too extreme for the time.