For an afternoon short walk to the stand you can't beat the nanno, but on those days when I may need more stuff, as in setting up a stand, all day pack-a-lunch sit (I eat big lunches) warmer clothes etc I switch over to the monster. I belive there are some folks who use the monster while shed hunting too.
Still kicking around purchasing the big terraglide. I need a big duffel to pack two weeks of "stuff" in. I could get the same overall size but without as nice a carry/pocket system or the lifetime garauntee. Lotta money though for something I may use 2-3 times a year.
The 'Bonker