Interesting question. I'll update a post from an earlier thread ranking eras of the Spider-Man comics.
https://community.cbr.com/showthread...diate+superior
The "A" eras.
Enter JMS) JMS's run can be split pretty neatly. This section covers his work with John Romita Jr, when the series was mostly self-contained. Meanwhile, Jenkins was doing some of his work on Peter Parker Spider-Man, and Tangled Web had some interesting stuff. Came out just when I was starting to read good comics elsewhere.
The Big Time) Amazing Spider-Man #648-700. Started really well, and had Spider Island. The worst was not bad at all.
Superior Spider-Man) A fun departure. One of the most entertaining mega-arcs ever.
The "B" eras.
Brand New Day) Amazing Spider-Man #546-647. Marked by the thrice-monthly schedule and rotating writers. Generally solid comic books with some true standouts (Unscheduled Stop, Shed, Gauntlet: Rhino) but some problems with issue to issue continuity.
Parker Industries) The tail-end of Slott's run took Spider-Man to some new places, though it was also a period when there wasn't much else going on in the Spider-Man comics.
New Avengers) The arrival of Mike Deodato to Amazing Spider-Man coincided with Millar's run on Marvel Knights Spider-Man and the Spectacular Spider-Man tie-in to Disassembled. The main change was that Spider-Man got more involved with the rest of the Marvel Universe, paving the way for One More Day. Had some of the worst regarded Spider-Man stories ever, but some real gems as well.
Nick Spencer Phase 1) It seems Spencer's run is going to have a neat divide with the end of the Kindred saga, or at least the first showdown. I admit I should reread the stuff after the Absolute Carnage tie-ins and might appreciate it more. It's good, but gets really padded and the Kindred showdown leads to a 20+ issue supernatural storyline that doesn't seem like the best fit for Spider-Man.
The Harry Osborn Saga) I realized that Dematteis kicked off his Spectacular Spider-Man run with Sal Buscema (July 1991) at around the same time Bagley became the official artist on Amazing Spider-Man (September 1991) and Terry Kavanagh became the writer on Web of Spider-Man (June 1991, quickly followed by Busiek and Mackie.) Spider-Man is the least neat but this is around when Mcfarlane stopped with the TPB length stories, and the book essentially became an anthology. This is likely the "era" where I've missed the most material, so it could go up a lot if I suddenly learn that particular stories in the satellite books were better than I expected.
Intermediate Era) This was the two years between the Clone Saga and the Mackie relaunch. Marked by a lot of crossovers, and solid but unremarkable runs.
The Rest
The Mackie/ Byrne Relaunch) Chapter One, and Howard Mackie's run on Amazing Spider-Man. Did include some good stuff with Webspinners, and Jenkins's first issues of Peter Parker Spider-Man, as well as some awful material.
Pre-Clone Saga) This would be the period from Spider-Man Unlimited #1 (the beginning of Maximum Carnage) up until the Clone Saga. Has some of the worst moments in the Spider-Man comics, notably Peter Parker No More.
The Clone Saga) I read almost every issue of the Clone Saga. There was some good stuff, but it was generally a mess.