Interesting opinions above, I have never been inclined to own a stretch except the one with that ZDP189 steel, I think that's the name of the steel, I'd like to try that; but if they made a PM2 with that steel I would go with it no doubt.
It is obvious I am an Emerson fan and carry them often, ( I carry other brands too, though) but I keep a PM2 in one of my pockets at all times, at least for the last three years I have, a camo and black DLC coated blade combo; what an awesome knife!
Here's a few pics so you see what I'm talking about:
The DLC coating is the toughest coating I have ever used, and the FFG blade is a top cutting performer in my opinion.
The blade has a 14mm hole in it and it is a breeze to flick it open with the thumb or with the middle finger from behind the blade, the weight is perfection, the gimping on top and bottom of the choil is also perfect, it is sharp and it locks the blade in my hand, etc. plus the compression lock is one of the strongest I've seen; it is just very hard to replace this knife with any other, it is the reason I carry two blades, I can't take it out of my pocket.
I will look at the stretch a little closer though, I like the shape of the blade. Can't go wrong with either one, I think, I just prefer the PM2, good luck to you!