Been re-reading the Joss Wheadon and John Cassaday run on Astonishing X-Men recently. I read it when I was about 14 and loved it (rented it out the library!), I’ve found everything Wheadon’s done aside from that to be pretty shite, so my opinion on him has always been “well he’s not very good, but he wrote a good X-Men comic I’ll give him that”. Turns out this is actually not good comics at all. Everything gets dragged out and decompressed to the point where there’s very little substance to each issue, he writes all the main X-Men as total morons and they all have the same unfunny snarky teenager voice. He does introduce some interesting concepts but he himself doesn’t do much with them, the real good stuff was picked up by other writers when he’d finished.
Intermittently reading issues of this and then going back to Simonson’s Thor, some classic Stan Lee Spider-Man, and my first read of Watchmen, which are all excellent and showing Wheadon like nobody’s business.