Open Tee got me into the series, it's very good and OT2 is more and better. That said, I'm currently playing HSG5 PS3. It's my favorite so far. The difficulty curve is not as severe as OT (which unlocks new courses soooooo slooooooowlllly), and it's quite pretty. I love the advanced shot option, it was a great design choice. It solved one of my biggest design gripes from OT: once you get better at the game, there's very little need to actually LOOK at the 3d world. You use it very briefly to line up shots, but the entire rest of the time you're looking at the wind indicator, or the shot power indicator, or the impact indicator... etc. Since Advanced shots actually requires you to look at your character, you're not looking at the UI all the time.