The biggest appeal of the show is the charming and well-developed characters, but a very common reaction among those who watch it is "wow, I can't believe that they made something so seemingly lame so exciting". Chihayafuru is proof that execution is everything. Also, it helps that the game is a bit more vigorous/physical than it might sound from reading the rules (eg: http://mizunoyukino.tumblr.com/post/42129944787), and that the show isn't afraid to have the protagonists actually lose important matches sometimes.
There's also a character who uses detailed statistics on the team and their opponents' play to improve their strategy, which may be up your alley :).
This is the monthly thread for posting media of various types that you've found that you enjoy. I find that exposure to LW ideas makes me less likely to enjoy some entertainment media that is otherwise quite popular, and finding media recommended by LWers is a good way to mitigate this. Post what you're reading, listening to, watching, and your opinion of it. Post recommendations to blogs. Post whatever media you feel like discussing! To see previous recommendations, check out the older threads.
Rules: