When it comes to hard shell cases there isn't a lot of choice. For anything decent it comes down to InCase and Speck. However, there are other options when it comes to protecting your Macbook:
Sleeve - These can offer better overall protection but they must be removed when it use which leaves your laptop vulnerable. The best sleeve for the Macbook is the G-Form Sleeve. The creator has a youtube video throwing his own Macbook Pro off a 2nd story deck completely unharmed.
Messenger Bag - Similar to a sleeve they don't offer protection when using your MBP but they can be very handy when on the go. The Built Neoprene Soho Messenger Bags are stylish, functional, and have excellent reviews.
Briefcase - This is the ultimate travel protection in my opinion. The Pelican Briefcase with foam, like the G-Form case, has some hilarious destruction demonstrations to prove your Macbook Pro can be indestructible.
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