Nevr-Dull is very good IMO.
I think Brasso (and its cousin, Silvo) are too harsh.
I find polishing my knives to be pretty relaxing at times, something
to do with my hands (I used to be a smoker), and when I'm done,
I've actually accomplished something for the display case, whatever.
So I do a lot of polishing and that's why I was maybe a little too strong
in my recommendations of Maas, Flitz, and Simichrome. If I was; sorry
about that. Over the years, though I've compared many different products, worked with them -
(not only on knives, but on silver and other stuff), seen the results, and this is my IMO; my .02.