Mario Golf is one of my favorite Mario spinoffs. I like the strategy aspect of it, in comparison to other Mario spinoffs. It also has some really nice music and graphics. And it's gotten me interested in golf in real life.
Mario Golf Super Rush was probably my favorite part of the last Nintendo Direct. The Speed Golf mode seems like a fun new idea for the series. I don't think I've seen anything like it in other golfing games. (Or golf in general). I imagine it'll be best experienced with friends. :,)