Rode them both. Contact Pro, for me, was absolutely suitable for all mountain freestyle.
Contacts, for me, were not but if I were a park rat, would be the best binding ever.
Phony is correct here. It's all about personal preference.
The Contact & Contact Pro would be directed more towards freestyle/park/jumping/jibbing if
you wanted to pigeon hole it. Gigi helped design it, and rips the hell out of Alaska on em. Dan Brisse jibs on Atlas' so there you go.
If you want an overall softer binding, go with the contact family. If you want more power and response, go Atlas family.
Thanks and Happy Friday!