I enjoyed Marvels (I thought Captain Marvel was great) but it, ultimately was tainted by cynical franchise building and it needed to feel more like a well-told story in it's own right. It was a waste of Zawe Ashton (she should have been Moonstone so she'd have at least been able to return at some point but they are busy butchering Thunderbolts, so perhaps not) which is it's greatest crime.
Madame Web was just awful and should never have been allowed to happen (see also every other Spider-Man-less Sony's Spider-Man Universe movie.