well, I decided to go with my "traditional" 5 (Fencing, Judo, Wrestling, Swimming and Field Hockey), but it doesn't make justice to my real addiction to most of the Olympic sports (and not only them)...
I also considered the idea to vote for Golf and Baseball, but actually the Olympics are the less interesting event for those sports, so I gave up the idea...
more recently, I also appreciate Sport Climbing a lot among the newcomers at the Games, but once again, the Olympic event format is so stupid and senseless that I left that choice out, too...
however, apart from what I call non-sports (Rhythmic Gymnastics, Trampoline, Artistic Swimming, Surfing and so on), I always say that I love all the sports in the world...just I prefer some of those to some others...