I'm not going to rank these, because there are times when I kind've get memories of the anime and they go from like number 3 to number 1 then after a few days back to number 3 but.... Tokyo Ghoul, Highschool DxD, Sword Art Online (unfortunately, yes). There's a lot more, but I'd rather not type for 8 hours.
Why Tokyo Ghoul: For Tokyo Ghoul, it was extremely emotional for me, more than it should've been. And it managed to "keep me on the edge of my seat" until the Anime finished and when it finished, it permanantly scarred me, for some weird ass reason.
Why Highschool DxD: It's a mix of fucking every single godamn good ass genre in the whole fucking universe of shitty Anime. Boobs, lolis, neko, nekololis, boobs, ass, fighting, Dragon Ball kinda' powerups (boosto boosto boosto boosto), boobs, boobs and boobs. The ecchi, is too damn high!
Why Sword Art Online: Do any of you really see the Slice of Life part of Sword Art Online? If not, watch it again and focus on the emotions of the characters, not just the plot itself and how it's a ripoff of every single MMORPG ever. I mainly liked it because it did have a pretty good Slice of Life feeling to it, even though it's not really considered one. But it definitely did have it's moments where it was bad. Mostly good, for me at least.