I think nude shades are pretty subjective. What looks nice on one may not look nice on another.
An example is modesty lipstick. I saw it very nice on my friend, so I b2med for it. But when I wore it, It looked much darker than how it looked like on her. And she didn't wear other stuff. But a admittedly, she's darker than me. So I suppose skintones and pigmentation of the lips makes a huge difference on how the lip sticks appear on individuals.
But to compile a list of my favourite natural / nude shade which i can wear without other make up. They would have to be
1. Shy girl
2. Bare again sheen supreme
3. Boy Bait creme sheen glass ( I know this is not a lipstick, but this is the best ever nude gloss that MAC has made in terms of texture and color, well at least for me. I m a huge fan of Boy bait)
4. High tea lipstick
5. Honeylove
For info, I am a MAC nc20 if anyone is wondering. I would have to try cherish lipstick one day too. Heard lots of raves about that lipstick as well.
I do have blankety, creme d nude and hue as well, but without make up, these 3 lippies make me look washed out althout they are nice colors when paired up with full make up.