I owe it to my 12 year old self, Frink. He still goes nuts every time Yoda pulls out the lightsaber and starts flipping around.
RotS (though L8's Dawn of the Empire more specifically) tied things together and I always get a calm, complete feeling after I'm done watching it.
ANH
RotJ - Better sense of comradery, easy to relax and watch, while Empire requires more focus.
Empire
TPM - Can't stay awake through this.