Besides processor speads, the grapphics card is better in the pro wich lots of people dont know, plus the screen is glossy on the macbook, if you care. If your going to be doing heavy final cut projects go pro. If size is the issue, go to an apple store and compare yourself, i dont think youll mind dragging along a 15 inch rather than a 13 if it meant faster rendering times and exports, smoother preview, etc..