Just thought I'd chime in about the MH. I've used the MH fluid vest on quite a few runs and hikes since april, and I love it. I've also tried on an ultimate direction, and taken a couple runs with a salomon s-lab hydro 12 and I like how the MH vestpack carries better. The bottle pockets on the front are perfectly suited for softflasks, and with those, it has the least bounce out of any pack that I've used. There's enough room to carry a phone in the same pocket as a softflask, or depending on the size of the phone, there is a zip pocket between the bottle pocket and your chest where my droid moto g fits.
What I like about the MH is that its as simple as can be, and it fits like cloths. I've found to keep other vests from bouncing, you have to really crank down the straps, which constricts your breathing too much. This one is just more ergonomic and you can leave it looser on all but the fast techy downhills.