When I head outdoors I'm always torn between my Marathon SAR (to a Rolex Submariner what a HUMMVEE is to a Range Rover; see here for details ), which is my EDC and which I love with a depraved, unholy passion, or my Casio PRG 70 which is highly nifty and has all sorts of bells and whistles, but lacks the SAR's utterly indestructible total confidence factor.

I think the Casio would win if I'd be going in with foreknowledge, but given that survival situation are usually unexpected, I'd likely wind up wearing the SAR.