Judging by the quality of the shows themselves, I think that this was a pretty good year for casting. I have my own taste and preferences (glamor, struts, sexiness) and I have issues with the fashion / modeling industry (models starting too young, diversity and sheepism) and while I am not completely OK with things on this front, I'm not tearing my hair out either.
Missteps:
Thierry Mugler and Dolce&Gabbana - I

theatricality but in regards to these two shows more thought should have been put into the production not overshadowing the fashion, particularly when it comes to the camera work.
Bottega Venetta's casting - I like many of the models in the actual cast but an all-star cast comes off as gimmicky when they're all doing different walks. I was particularly horrified by Carmen Kass' walk, although it should be noted that similar to the overall Arizona situation, it translated well to pictures.
Arizona closing Versace (that was not a good dress for a novice walker) and opening Anna Sui with Karlie and Frida, had it just been Frida and Karlie that would have probably been one of the best opening of the season.
Kate Moss' close Louis Vuitton - I don't have a problem with Kate's slightly visible cellulite
at all, but the cigarette thing was too much and cheapened a very slick show.
Highlights:
Lady Gaga at Thierry Mugler - the whole show was over the top and her close fit right in.
Isabeli's decolletage at Emilio Pucci was a wonder!
Alexander McQueen, Prada and Versace - As a person who favors models with personality, it pains me too say this but these shows did the clothes hanger thing right. There was not a lot of personality on display at these shows and save a few I have no idea who the heck those people were on those runways, but for the most part the models had good walks and gave life to the clothes. The exception to the no personality thing was Kasia and Hailey at Versace, which was kinda awesome.
Other well cast / well-produced shows: Anna Sui, Blumarine, Burberry, DSquared2 (best staging), Emilio Pucci (perfection!!!), Gucci, Jean-Paul Gaultier and Louis Vuitton.
Best openings: Anna Sui (in spite of Arizona's shrimpy presence between Karlie and Frida), Burberry (Jourdan), Christian Dior (Karlie), Lanvin (TBH I did not like Natasha as the opener, but the atmospherics were great) and Stella McCartney (Natasha Poly).
Best closings: Blumarine (Candice), Jean-Paul Gaultier (some crazy lady), John Galliano (Magdalena) and Thierry Mugler (Lady Gaga).
Favorite parades: Burberry (breathtaking!), Burberry (all three of them), D&G, Dolce & Gabbana, Lanvin and Louis Vuitton.
I may post model favorites / highlights later.