In the Osprey line, the Volt or Aether series, or the Atmos (I've made the assumption you're a guy - If you're a woman, it's the Viva, Ariel, and Aura series.)

Deuter should also have something in its ACT, ACT Lite, and Aircomfort series.

None of the above are ultralight - they're lightweight (under 5 pounds), but probably toward the heavy end of what most people on the forums use. They will also handle signficantly heavier loads than most of us carry. Personally, I use an Osprey Kestrel 48, but that's a lot smaller than you're looking at.

In the end, it's driven by comfort - a good fit, and the ability to comfortably carry whatever amount of weight you're going to put in it (which you also didn't tell us.) The only way to tell that is drag your stuff (including food and water) to the store and try several on - it will take several hours; call ahead to find out when they won't be busy, since you'll eat up a fair amount of their floor space while you play. Good shops will let you do this; if yours won't, find another shop.