It depends on setting:
If you are working in a rough shop where you aren't assigned a bench the metal Kennedy's are the way to go.
If you have your own bench at the shop or you have your own shop, the Gerstner's are the best.
Not only are they very good utilitarian tool boxes, but they indicate that you are serious about your trade in a way that few other outward signs can.
You don't have to be a machinist to know that anyone who has taken the care and made the investment in a box like that isn't just fooling around.
Gerstner boxes are a tradition in the trade.
The guys at Gerstner have gone out of their way to make the Gerstner tool chests look as masculine as they can while staying within the practicalities of design.
If this wasn't done, Gerstner would always be backlogged.
Women just love them! They want to put all their rings and jewelry and litte stuff in them.
Look at the crappy jewelry cases women have to put up woth.
We men get to have the Gestner chests for all of our little treasures but they are just a little too Manly for the girls.
Hmmmmmm......
Messrs. Gerstner, are you listening?