I see a lot of threads about SW and Template but there is a lot of Template so I'm kinda lost

Can you recommend the strongest Template for Solo/Roaming & BG, I'm most likely playing Solo so..
Also, I'm kinda lost with all the posture of the SW.. Which one do you recommend me to use the most and for which situation?
I'm only using the first one & the second one.
First one : Distance & big damage
Second one : For a better mobility
I don't use the third one... is this a big mistake? I mean this posture give me 5% Crit but dunno for which situation I need to use it sadly.