It's not always about the beam width imo as I've got a 228 Seafarer with an 8' beam and my neighbor has a 270 Islander with an 8'6" beam and honestly it's hard to tell the difference from the helm area. You'd think the extra 6" would make a huge difference, that's what she said! When sitting in the helm area of my boat it gets a little tight walking between the seats or trying to move around the walkaround part of the boat up to the bow. I figured with his boat being an extra 6" wider that it would be night and day different but it wasn't, it was about the same ratio as mine as most things on a bigger boat are going to be slightly bigger, so it wasn't really noticeable or anything. I'd call your local dealer and step foot on each boat to see what you think and if one stands out more than the other.