I decided on the SH HX851, and definitely the optional alkaline battery tray. I think it has everything I will want for a safety radio. The display screen looks great, it floats, not that heavy, has DSC and GPS, the strobe and glow-in-the-dark gasket could come in handy. We do carry the alkaline trays, with lots of spare batteries in the Grab Bag for our other radios. Just in case that doesn't make it, I want a radio to attach to the PFD with lots of safety options, this one seems to have them all.
I do like those small ICOM's too, they would be nice for an everyday radio, I've had my eye on those for a while.
cheers, John