I've Only Heard of 3 styles...
K-style
D-style
E-style
Besides that the rest are bs styles xD
Ive heard of some bs ones like
med style
Screen shot style (forget teh exact name)
Monk style
All bs xD
Monk is just a form of k-style
Screen shot was AWESOME to watch but hard to use and control without a proper setup.
Ive seen ppl literally fly aroudn the map with screen shots
and pb ppl 5 times in 1 second while disappear around u
awesome to watch
but pointless to use in a real fight
Both gonna run outta bullets xD