What is your favourite Work/School bag?

It's gotta be a shoulder bag for me preferably with a compartement for a computer, right now I'm mostly using damier geant messenger. It's perfect if you don't have too many books.
 
I was leaning towards the saleya MM until my bf talked me out of it because he hates the shape of it, n the rolled handles are not very comfy....

then i was thinking about the lockit horizontal... any thoughtS?