Dave,
You'll find that your question has several answers. It's like asking what's better - Ford, Chevy or Dodge. I have a Chevy and a Toyota.
My choice for a catamaran is the Hobie 16. I've had a Prindle 16 and enjoyed it just as much. Each boat design has issues that don't settle with eveyone but it comes down to personal choices. I base my choice on parts availability and support information available on the web.
If you're looking for a recreational catamaran I would stick to the Hobie or Prindle. Price and ease of use fit that category.
You may want to hitch a ride on one of the boats before you make your choice. Make sure you thoroughly inspect the boat you're thinking of buying. Search the forum posts to read about some of the inspection tips.
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Martin
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