I'd give myself a B, with random days of solid F.
I mostly eat quite well, because my impulses are mostly quite good. I don't like cooking, so my meals are simple, but fortunately I like most foods, so I'm perfectly happy to just eat a tomato with a little pinch of salt on it as a snack, for example.
I'm heavy on fruits, slightly less but still plenty of veg. I consume a fair amount of fat, but my body tends to burn it pretty quick so that's fine (fat's not bad, unless you're not burning it). I don't eat much meat. Mostly fish, occasionally poultry, and I mostly only eat red meat on rare occasion in the winter. I don't know what my calorie intake breaks down to, but my weight doesn't change unless some outside factor is affecting it (I tend to lose when I'm extremely stressed or bereaved -- makes me feel kind of sick, so it's hard to eat). So whatever it is, I guess it's fine.
But then I have random days where I start off the day with a chocolate croissant and finish it with delivery pizza. :lol: But I suppose that's fine as a one-off thing.
I also drink coffee, though only 1 to 2 cups per day. And I have a major, major sweet tooth. If I have a food vice, that's definitely it. But I try to sort of keep that under control. I'm amazed I've yet to have a cavity, if I'm honest.