Haney, for me, is never really an exciting fighter compared to Davis who can deliver KOs all the time but he is a technical yet also boring fighter but definitely great with his footwork. He the kind of boxer who punches his opponent for the reason of just stopping their aggression in the ring and he is happy to see his points go up.
Since Regis is also a great boxer, the result will probably be the same as how Haney ended half of his fights which is by Decision.
We all know that Haney falls into the category of kinda boring boxers—there aren't many, but they're all unbeaten. Personally, I believe that boxing is as much about putting on a show as it is about competing. I mean, a boxer would get more love if they could both win the match and keep the crowd entertained simultaneously. But with Haney, it's all about that "W" – the entertainment factor is usually missing in action in most, if not all, of his fights.
Right now though, one good example that wanted to engage and still got that W is Davis. But he is not a real champion and he should step up his level of competition but it's seems his camp doesn't want to do that.
But there are also boxers that is pure on defense like Haney and majority of boxing fans, doesn't want that kind of show. We wanted old school fighters, like Mike Tyson or even the legendary Manny Pacquiao. Not afraid to lose and doesn't have that defense mentality. His best defense is his offense.