Re: Barometer / Altimeter watch ..... ?
Pathfinders are outstanding. I have the PAW-1300T, worn it every day for the last 2.5 years in Afghanistan, and it still functions and looks great. Sensors are accurate (off the wrist for temp) and there is only one tiny scratch in the crystal even with as much as I abuse it.
I recommend sticking with the slim line of the Pathfinders as they're big enough to start with, and also don't even think of not getting solar power. The sensors are battery hogs, so you'll need it. My old battery model Pathfinder needed replacing every 18 months, and that is my biggest dislike of the Suunto too.
Everything else is personal preference, but the titanium bands rock.