Only because people are expressing some surprise at the love for Zenith - I think it's interesting - because obviously there's a time and place aspect to our enjoyment of things. I would preface this by saying that Button Man is a great piece of work, and is really up there - it's not as if I can say that Zenith is necessarily better than it, as a piece of work.
Having said that - Zenith just hit me at the right time - and there's a magical glow in my nostalgia circuits when I hold a prog from that period ('87), that, five years later, didn't exist anymore. Steve Dillon's cover just grabbed me, for a start:

The texture of the prog's cover paper had recently changed, as well - so my memory can *feel* the comic's slight tackiness compared to the pre-520 progs.
The idea of alternate earths (apart from Sideways Scuttleton) wasn't part of my zeitgeist, I'd never read Miracle Man (which people cite as an obvious inspiration for Zenith) and hadn't got into the Cthulhu Mythos, so thought that all the dark gods stuff was terribly original. That, and doing something where superheroes were flawed still felt very new, and something to be proud of in British comics.
And then this story - the hero wasn't one, the heart-felt montage where Red Dragon recuperates ended in brutal tragedy, the person who really saved the day was a once-hippy Alan B'stard. It was just so brutal, and had this weird depth of history thing going on - it didn't pander to the reader by explaining everything for them.
And then Phase II didn't go where I thought it would go, then Phase III mostly ignored the title character, then Phase IV let the dark gods win (despite all the sacrifices of the previous parts) - even if there is a magical Usual Suspects teacup moment. Weirdly, it impressed me by continually upsetting my expectations of what it would become.
So, because of the time and place - Zenith has a magical nostalgia for me that I don't think anything printed in the prog since has any hope of touching - however good it might be. I would say it's Yeowell at the top of his game, as well.
