Thanks for the review (all your reviews in fact) and the comments Cas.
Ah yes, I only just realised you gave the movie a 6, but the disc an 8 - my mistake. I wouldn't particularly disagree with those ratings.
I'm certainly not saying that IM2 couldn't have been better...
And I do see all the thematic links from Avengers to IM3 to Age Of Ultron and beyond.
So I'm mostly agreeing with you.
But somehow, I think I prefer the script / dialog, and the various "beats" of IM2, even if it doesn't fit together quite as succinctly as some other MCU episodes.
I'll admit I probably ought to watch both IM2 and 3 again to crystallise my feelings about them.
But for me, IM3 is where Iron Man's storyline started to jump the shark in terms of plausibility. Yes, I know nothing in the MCU can really be considered plausible, but there's a level of unbelievability where the story becomes less interesting. If the tech can do almost anything, the jeopardy evaporates somewhat, because there's always a stupid-plot-device way out.
There's a lot of IM3 that I didn't quite buy into, from the on-off PTSD symptoms, to exploding soldiers, to bits of suit that fly through the air, to the "ha ha, he was never wearing the suit in the first place!" gag, to detonating multi-billions of dollars of custom armour in the name of a romantic gesture and a spectacular movie ending. I get it, but deep down I don't buy it.
Things were reined in a bit for Age Of Ultron (which like IM2 is flawed overall yet has great stuff all thru it), but eventually it culminates in a nano-suit which springs from nowhere, is presumably atoms thick, but survives all manner of impacts, and which enables the legs to suddenly metamorphose into a rocket engine. Same with the Iron Spider suit. It's ok, but a little part of my brain is going "Oh, pleeassseee...."
Meanwhile, IM2 serves as the origin story for War Machine, establishes Tony's relationship with his father, introduces Black Widow (for better or worse), sketches out what SHIELD are up to far more clearly, even gets into the Tesseract a bit... Who knows, we might even get Justin Hammer and AIM back some time. It sets up a lot of stuff without the viewer necessarily realising. It's not as disposable a story as it may have seemed to reviewers originally. I always enjoy it every time I see it.
I'm slightly splitting hairs though, I've enjoyed both IM2 and IM3 if I'm honest. If I really wanted to rag on an MCU movie, we'd talk Captain Marvel...