For my tests, I tried packaged pepperoni from Gallo (cured and uncured - so they say), Hormel, and three local butcher/charcuteries (Olympic Provisions, another I can't recall, and Old World Sausage - all local to me, offering on-prem pepperoni. And, being a fan of Boars' Head - I tried their stick pepperoni.
My results were somewhat similar to the Slice review of the same topic. Some taste great (to me) out of the package, on another type of starch, etc. Gallo and most certainly Boars' Head, for me, fall in this category. The Hormel is better on a pizza than it is served another way. However, I'm using Armour right now and very happy with it. There is a Farmers Market this weekend that I believe has VTSmoke - so I plan to try that. The review Steve (Admin) did on Ezzo was excellent and made me wish I had reason to use 20 lb's of pepperoni.
It's a favorite saying of mine: There is no accounting for taste - especially mine. I could be right - but who knows - everyone has their "best." You really have to try a bunch yourself and see what works best for you/family/guests.