This was my first season that I watched full from the start and I'm kinda happy with it.
I gave a try to every anime that didn't have a prequel I haven't seen, some of them were clears drops after the 3 episodes (mainly Lance N'Masques, wtf was that), the last one I dropped was Utawarerumono after episode 8 or 9, the first 2-3 episodes were awesome, but I got tired of absolutely nothing happen, I know it's a 24 episodes anime so having fillers to introduce characters is needed, but as someone that usually watches the anime in one go, thinking about weekly watching one episode full of nothing made me too lazy to keep watching it.
Then we got into the battle of generic battle academy anime, IMO Rakudai was clearly superior to Asterisk Wars and Taimadou Gakuen, I loved how they quickly go for a romance between Ikki and Stella instead of just going for the standard and overly recycled harem with generic tropes and constant teasing but nothing happening, mainly Stella (Rakudai's female MC) decided to say fuck this against that type of anime by being really direct about her feelings, she is the clear best waifu of Fall 2015 IMO.
We got the much waited sequel Owarimonogatari (and they delivered, thanks Shaft!), and, while I personally think it's quite overrated and just a good anime, One Punch Man, like one pointed out in a post about this yesterday, atleast I must be happy that it became that popular, because it made a lot of people start watching anime, I hope they stay to watch more of them.
Other anime worth mentioning are the mystery ones like Sakurako-san and Subete Ga F ni Naru, that were pretty enjoyable to watch every week, and some comedies like Shomin Sample (Even if it's a ecchi harem, just what I complained about before, I love the setting of the anime, and some parodies were hilarious, I hope we get season 2) and the short Hacka Doll the Animation (There are dozens of us watching it!).
Overall I'm happy with the season, I give it a 8/10 score, I can't wait for Winter season now, I'm even watching all the anime that will get sequels so I can really enjoy all of them!)