Since we started morphing another thread into this subject, let's explore it here.
What bag(s) do you prefer for carry-on?
I just bought 2 new ones--after Boss got one for Christmas:
Sierra Lite 22" wheeled, recessed handle, with zip-off day pack. This bag has backpack straps built in so IF one so desires, one could carry the whole thing on one's back (not happening for me!!) I will likely cut the main bag straps out.
We really appreciate the roominess, durability (we replaced our slightly smaller Sierras) and the two empty bags weigh just under 10#, full framing, too.
Boss is now using it as crew bag since they dropped the big heavy flight kits (YAY!!) and he keeps a small 'valise" style bag for must have pilot stuff.
I use the old Sierra for short trips but this new one is quite a functional beast!

What do you like?