Just been through this. Looked at a Rib-X as I like the seating arrangement, then moved onto a Ribeye 650 as the bench seat and Yamaha outboard look fantastic and considered Brig, Ribtec, and whole host of other "family ribs".
Ended up with an Avon 620. It has Hypalon tubes, a small rear bench seat, a fantastic deep v hul, a Yamaha 150 outboard, and after over a week of ownership I know I have made a good choice. It cuts across waves with ease and having owned a powerboat it is so simple to use. Mine is 8 years old as looks as good as new.