i'm only going to say one thing on this matter and then i'm gonna leave it, because without proof one way or another, this will go on and on in circles the way it has been....
force lightning is a form of torture, the jedi could do it if they wanted but choose not to.....
torture is dark side....there's no other way to see that power than as a application of great cruelty....
the choke could go either way, it leans towards torture, but not as much as the lightning...the way luke used it didn't seem to involve too much cruelty....
oh, come on that would have hurt like a bastard.....jedi usually only fight with sabres which doesn't hurt the opponent, they just deflect off each other....
i know there are exceptions to this, but they're more like plot holes...
running away really fast is a jedi power, and lifting heavy objects, the power of suggestion/mind control....
why am i still here?....