I am a big fan of external frame packs. I have used them on countless hikes and overnights and several thru hikes.
I attempted to use an internal frame on my PCT hike but switched over to my trusted external frame after only 400 miles b/c of several issues:
--everything had to be bagged or sacked and then put inside the pack.
--b/c everything was "inside" the pack, I didn't have easy access to anything unless it was on the top
--side pockets on the internal were much too small.
With my external frame, I knew where everything was in the outside pockets, even if it was total darkness. I didn't have to worry about putting things in different colored bags to identify the contents.
So my question is this: Is there a pack that is internal frame, has a top pocket, side pockets that extend beyond the main pack like those on an external frame, and even has front pockets, yet it can be used for a weekend to week long hike?