Hockey, it's the best sport to watch live (imo). It's just so fast paced, a lot of hitting, fighting, everything you could want in a sport.
Australian Rugby is Aussie Rules? or are you referring to Rugby? or Rugby League? neither of which are Australian although they play it, reasonably well too.
Actually I think I was thinking of Australian Football but I was confused because it resembles Rugby a lot, in the case that it is ridiculously aggressive and intense.
I love ping pong. Used to play a lot of it as a teenager and in college. I have a table in my cellar and have taught my son how to play and he is pretty good. We are both left-handers, and I find that to be a great advantage when playing against someone who is not used to playing a leftie.