Hard chrome is far superior to ceracoat, I have three guns that have been hard chromed including a S&W M66-7 2.5" barrel Australian issued PD re-import. I sent it off to APW and had it tuned up, and hard chromed, it has been carried hundreds of times in a Galco Speed Paddle and a Bianchi Nylon Paddle, it looks exactly as it did the day I got it back from Cogan!
I had a Lightweight Commander done in ceracoat by the same outfit, it failed entirely within three days of having been returned! By failed I don't mean that it just fell off, I mean that in multiple positions along the pistols slide it simply flaked off in micro-chips, these had to be looked for under a magnifying glass, but there were at least a half dozen points where the Colt's slide was wide open to the elements, and that is a total failure of the vaunted ceracoat finish!
I consider ceracoat to just be the latest of the so-called spray & bake wonder finishes to come down the pike, they are vaunted as the ultimate this and that, but the reality is they do not bond to the substrate, and not doing that they are easily scraped off, often in just a few holsterings and re-holsterings!
Oh, and ceracoat, it costs more then hard chrome, which to my mind is really just crazy considering how fragile it is in comparison!
You want awesome abrasion protection, its a no-brainer, hard chrome!