Passive:
Football (Soccer) - best fan culture by miles and just an awesome teamsport to watch
Tennis - love to see how they fight for every ball over hours
Formula 1 - can't really explain, i just love it
Snooker - nice precision sport and good to think about what you would do in those situations
Boxing - Baaaam!
(i really like to watch wintersport but i have no preference there, i just like almost everything of it)
Active:
Snowboarding
Skiing
Tennis
Table Tennis
Hockey
I love the atmosphere in Winter when you are in the mountains, that's why i love snowboarding and skiing. The speed feeling is also great. i prefer sports with rackets so that's why i love tennis, table tennis and hockey so much. Same with badminton and so on.