I used to play both. Bonzini tables are the original french-style, while Rene Pierre is one of the better alternatives. Playing style is very similar for both brands. I personally find Bonzinis to be the stronger and smoother of the two. Also, Bonzini is one of the only 5 official ITSF competition tables in the world.
In the states, Bonzinis are sold by Bonzini USA, NC. Give them a call, and they should be able to help you find the closest place to play in your area.