Truck tool box

I have had both. My black one is flaking the powder coat. My aluminum one just faded and lost its shine.... Six one way, a half a dozen the other my man.

Chrome or black depends somewhat on the color of your truck. Definitely get one with a rail (good place for keeping a cooler, etc.) I sell Cam-Locker and have never had the first complaint about them.

I've had my R&K since '97, would bet I could put most of the above in it. It wasn't cheap then, won't be cheap now. It is however 16+ years old and going strong, so.
It's aluminum, no color match problems when you get a new truck.
My .02.

I have a black truck and I went with a chrome weather guard. I think the chrome looks better on a black truck.

I have a black truck, chrome door handles so I went with the chrome tool box, UWS, chest style. Love mine, only con I had was when I first put it in, I parked under a tree at work. Leaves and junk got behind the box, and clogged up the drain holes in the bed. Toolbox actually would take on water in a good rain. Pulled it out, cleaned everything, drilled more drain holes, remounted the tool box with tin screw (the ones that have the rubber washer,) never had another problem. Only other issue is it takes up bed space, with a 4 wheeler I have to leave the tailgate down. Bought a LA Guard Dog, no problems.