Vladius said:

Then don't watch Star Wars I guess. (???)
Is Obi Wan tricking a storm trooper because the storm trooper is a less powerful mind 10x the cop out of him dicing them to pieces with a lightsaber?

The thing is, he does both.
He does both with Anakin, you seem to have no problems with that. He wants the power to save Padme, his love, who he fears losing, and to kill the Tusken Raiders in vengeance for his mother's sake.
Why is it wrong when it's done in a more subtle way? Luke wants the power to save his friends, who he loves, who he fears losing, and to kill Darth Vader and the Emperor out of vengeance for the ones already lost.

I do have problems with Anakin's turn. My problem with Luke's near turn is that while it has a decent amount of buildup and drama.....the motivation is not clear and therefore kills tension. My problem with Anakin's turn is that his motivation makes sense (within the context of the story mind you)....but it's far too sudden and too much like a switch going off that it hurts the story.

Tricking a stormtrooper is a plot device/character development for obi-wan kenobi. The problem I have isn't that it disobeys the rules of the universe, but that explaining Luke/Anakin's motivation as simply the emperor's influence in the force makes for a less compelling story.