I'd say plot - graphics without a plot is just porn, not a porn game
For actual games there's a 'good enough level', once that's reached the game play take priority.
Whats a Kekkaishi?
I don't really encounter many anime spoilers, too busy autistically listening to facts about tanks. Although I do still encounter talk of some anime of 'girls un panzers'.
AI is a tool for art, and far too many people are shipping the equivalent of stick figures, Good AI art you cant really tell is AI, because the time was spent to make it not generic.
Congratulations if you can make it past the intro, this was painfully shit attempts at something 'deep'. The skip function doesn't work, so unless you like reading a slideshow one word at a time give it a miss.
EDIT: there is a skip in the options you need to stick over to enabled, however...
Code Gease, criminally underrated. Two seasons of constant buildup and a finale.
New anime starts to feel like a soap opera at times with the constant side quests to drag the thing on and on. Usually a great first season, interest peaks, and then season two is a soft slowdown reboot to explain...
Some gems are rated badly if there is even a smidge of something people dont like (avoidable or not), so its one of those 'read the things' where what the reviews say matter more than the numbers, 20 'its shit dev ruined reality' vs 1 well typed and thought through review can sway me.
The thing I like is with the classics its like getting into a band that has 7 albums released, you can go and binge everything (went through tri gun in a day)