http://steamcommunity.com/id/9001145712234/Engineer/Medic/Pyro/Spy
ANYTHING BUT:
Sniper/Scout/Demoman
I like all three but suck as them. On the four classes I listed, I have at least 20 points in one life with each.
I'm not that good, but I want to learn and get better. Although as Engineer I generally do really, really well. I never die without at least 7 points.
EDIT: WAIT stuff scratch Pyro
I only have 11 points as him
the rest I have at least 20