Another vote for briggs. I really like the 20" with the space for a laptop... it is not the regular 20". It costs a little more, but is perfect for a trip with laptop. I use a sleeve with it, on my lenovo.
Since I went briggs, I could never go back. Tumi? Travelpro? Tried em. Briggs is great. Though, less cachet in the admiral's club if you are into that.