JK - Cooler "fluid" animations (especially the Guardian Master Strike is just awesomeness), terribad story,
SW - Boring "I IZ ANGRY" animations, great Chapter I and II and a pretty good Chap. III
SW's voice actor is also superior to the JK (male). JK isn't "bad" mind you, fits the character well, but SW is just perfect.
Also, as far as I recall your LS/DS choices had a way greater impact on your story as SW. As JK they have hardly any impact at all.