I've had 2 of the packs listed in your group.
The deuter futura 28 was hands down the worse pack I've ever worn. It came only in one size, and that size was more geared towards someone wiith a shorter torso. The hip belt "wings" were useless and annoying. Hipbelt transferred zero weight. The trampoline was wayyy to pronounced, so that it cut into the main package area. Very gimmicky packs, that tried to shove big pack features (think sleeping bag compartment) into a small daypack. I would run and never look back if I saw this pack again. Gotta give them street cred, though, b/c i think they came up with the trampoline vented backpack concept. But still, worse pack ever
The gregory z series are awesome. I owned a z22. They come with great adjustability, and actual sizes. Hipbelt transfers weight very efficiently. Best part are the hip belt pockets! Good durability too!
Personally, I think the exos is the nicer one in your batch, but if durability is an issue, go with the gregory