What do you think about an MMA ring with boundaries, inclines, or other such additions?

Remember how the pride ring was set up? It was similar to a wrestling ring and used ropes rather than a cage. I like the cage setup the best, but the best advice I could give is to try a few things out and see what you like best. Personally I just like to see skills portrayed in a regular old ring rather than the environment giving a less skilled fighter an advantage.