Bifl backpack; Wenger?

My Wenger package zipper took it's last breath a couple of days ago after 6 years of usage. So now I'm looking for a replacement.

I'm thinking of getting the same brand again because with my heavy usage I think 6 years is already quite good :) but was wondering if there are some alternatives that might be better still.

It was the Wenger Pegasus and I really used (almost) all of it's compartments heavily. Preferably I'd like a backpack with a (semi) professional look quite look my Wenger does