@Shadowlink In that case, I would say go with your family's favourite sports. Tennis and bowling are always hits, tennis especially if you have 4 Wii remote pluses. The golf is a personal favourite of mine, but it's not for everyone. Baseball is fun, and I like the additions they made with pitching and fielding using the gamepad. Boxing I don't think is much improved despite the supposed added accuracy of using two Wii remote pluses per boxer. You can probably skip that one.
I'm curious, was there a retail release of the game, over in Australia?
I was actually rather drawn to this version purely for WM+ Tennis. Forgot I don't have that many WM+ enabled controllers though. One attachement with Resort, and the Skyward Sword Wiimote+. I think I got a third WM+ with Red Steel 2, but I lent that to a friend when he borrowed Skyward Sword. Must get that back.
Dad's got his attachment from his copy of resort...that makes 3. Will have to do.
And yeah, I think there was a retail release. Never did look at it too closely.