Ratings/Review System Recommendation

Hello all,

doing some research for a client. They are looking to create a product rating and review system using WordPress and I was wondering what the options are out there. Ideally, the system would allow us to create different forms and fields for each product so the data created could be ported to a different system at a later stage if needed. I’ve been thinking something like Magic Fields might work best for this but would love to get some other ideas. Thanks!