Today I finished cleaning a second hand pack I bought for use when I take my son out and for an overseas trip in two weeks. Not exactly what you would call light, It's an Osprey Cresent 90 and weights about 3 kg, but I have to admit is it really feature packed (not that I indend to use it other than described previously). It is not only a top loader but also has bottom access and a large zipper running along one of the edges to make it a side loader. There are numerous pockets which Osprey are quite known for.
While I was cleaning this pack I thought about the others I own, so here is the list; Osprey Aether 60, Osprey Kestrel 48, Osprey Cresent 90(new), Golite Dawn, ULA Relay and with my BGT testing I have a Klamath 55 on the way for review, total of 6.