The Pro also has a sensor port, and can do the dynamic timing advance like other new racing controllers.
It also has an adjustable BEC (which sometimes seem to have a few issues with high-torque current hungry servos), but overall it is a solid controller.
I wouldn't put too much weight into what companies rate their ESC at as far as current handling. A lot of the numbers are way overrrated, much like C-rating on lipo batteries. The Mamba Max Pro is a very solid controller that can handle more than enough current.
One thing that is overlooked most of the time is service and support, and Castle has some of the best in the business. If you ever do fry a controller or run into problems they will be there to help. Not sure how Hobbywing is with service and support, or what you would do for warranty issues?