We use a 10' Zoom by Zodiac. It's a RHI (rigid hull inflatable) with plenty of room for 3 (4 fit without much room for anything else). It's stable, fast, well-made and reasonably priced (~$1,200).
I've used inflatables most of my boating life and wouldn't purchase anything in the future that doesn't have a rigid hull. I like the stability, performance and durability. I've owned a few inflatables with wood floorboards and ultimately haven't been happy. They need maintainence or they'll eventually rot.