What kind fo camera are you using? Lenses? How much have you shot before? Have you read books? How good do you want to get? Do you know about aperture, shutter speed, metering, etc? I know I suck but want to get better is a pretty general cry for help, tell more about what you want to learn.
Shooting events are very hard. Lighting, commotion, busy backgrounds, etc. An narrower depth of field would be better for all of these, however that is hard when things are so quick moving. A fill flash would have been nice too along with more careful metering. The composition is uninteresting, just like snap shots.
I think #3 was most successful.