I just read your column, and pretty much agree with it, only wishing it was an even longer read.
The top ten runs list is very objective, and I'm glad the New X-Men work was mentioned in passing.
As for the five worst comics, I just discovered that I never finished most of those! The "DC 1,000,000" crossover threw me off right at the beginning, I've repeatedly tried reading the "Kid Eternity" but never got past the issue #1, it feeling like a generic Vertigo comic, although a creative one at that. "Steed & Mrs Peel" was very workman-like, and I believe I read only the first issue of it, remembering something about an elaborate spy-game mystery involving Reynard Fox.
As for "JLA/Wildc.a.t.s" (always felt silly about the acronym for "Covert Action Teams"), I read it while I was trying out other superhero universes, spurned on by "Wildcats v3" and Alan Moore's run on the title. I remember it featuring a, presumably updated, Epoch lord of time, which was in line with Morrison's JLA in that it updated a Silver Age character, just like the Key and Shaggy Man. Aside from that, it featured a pairing off the similarities between the teams, which worked until it came to Green Lantern, that was pitted aside Hulk-like Maul. All in all, a standard superhero comic, just like some of the Mark Millar and Mark Waid fill-ins during Morrison's run.
I've read the Morrison Spawn stuff twice, only noticing his contribution on a second read, just like the Alan Moore issues. I remember it feeling a bit inspired in a boat ride scene that elaborated on what I believe was called a "pseudo-plasm", Hell's gradient tissue that explained some of the book's mythology. It was a bit unclear and never really followed upon, but it featured a fake memory-city, before being forgotten in the wake of the fight.