I've seen the maple cabinets with the chocolate glaze before and they are gorgeous! I'm not that familiar with the colorations of the gunstock oak and the medium red oak flooring though so I am not much help there.
Does one of the floorings match the cabinetry more than the other? I think I'll just need to get onto a site and look at the colors myself.
I will eventually be installing hardwood flooring and getting rid of all the tile flooring that we currently have. But that won't be for awhile yet and so I haven't explored all of the color options available.
Just from my imagination, it sounds as if the gunstock is a bit darker than the red oak? Personally, I might go a tad darker, like that, if that is the case, just to bring out more of the chocolate glazing and give it an overall warmer feel and a bit of a contrast. But that's just me surmising!