You can bring it to a laptop repair guy somewhere at your place. There is no explicit way to tell which of the 3 it is without disassembling or at least removing the Display of the laptop which i recommend should be done by a pro.
I would go with the SP3. It's windows which i am familiar with, easier based on experience with the OS and hardware (an I7 is better than an I5) but..... The MacBook should suit your needs better with the super drive for your media.