While it isn't a review, I wanted to post some direct paragraphs from GameSpy's hands on with Lego Star Wars: The Complete Saga. They have some very good things to say about the Wii controls.

To use the Wii's functionality, the Complete Saga team essentially added a layer of motion-sensing controls over the primary set. You can press the Z button to build, but if you piston your arms up and down to pantomime the character's animation, you'll build much faster. Similarly, you can just press the Z button to use your Force powers, but if you direct them with the Wii's controls you'll get a much faster or more powerful response. Although it might not make it into the final build, blaster characters will probably be able to fire their grapples by flicking the remote from down to up. And, finally, you can use the Wii Remote to swing your lightsaber.