Ayyyy.
Regarding the topic, I really like his artstyle (although I don't particulary care about the one he used for Type-0 that seemed to be the one he used for a while). A shame that his art doesn't really translate that well always to 3D, especially with S-E's obsession of making everyone like a porcelain doll.
Now, when it comes to his character design... when I like it, I really like it. But there are times that... welp. I absolutely love his VII and VIII's designs. The highly stylistic designs of Cloud and the rest was great, and that's one of the reasons why I dislike his more realistic take on them (especially because they look like weird creepy dolls). His VIII's designs, at the same time, are both manga-like and much more realistic, and I LOVE them for that. VIII has to be, along with IX, my favourite FF in terms of visual design and art. And man, Parasite Eve is amazing in every regard, too, pretty similar to VIII's. That Nomura artstyle is my favourite by far, so good: subdued, charismatic and beautiful.
So yeah, I don't like when he goes crazy and starts adding stupid unnecessary things to this characters (like he used to do regarding belts and zippers), like his Squall redesign in Dissida. Or the entire FFX cast (one of the many reasons I'm not too fond of this game). So fucking awful, seriously. But when he hits the right spot, I love it.
I hope that XVI has a different character designer (which is almost assured). I'd like Amano, but I really doubt that would happen and I doubt they'd stick to his original artstyle, so they'd have to adapt it. Yoshida would be great too, I love his more realistic style (BD is alright, but I'm not that into it, especially because it reminds me a lot to that FF Gaiden game on DS, and makes it feel like a FF spin-off. Which it is, in a way, but...)
New people would be great, too. Aw man, I fucking hate what happened to FF since XII came out (or well, before). I want new FF with new or different people without having to wait for the same shit ten years. Hopefully XVI is at the very least at pre-production stages (I'd be it is), because it's been 9 years without an original mainline FF (a decade of fucking Lighthing and your ocassional short videos of Noctis).