system
Given the following post, respond as if you're commenting on Reddit:
human
[Batman] In which area of skill could I reliably beat Batman even if he has a year of prep and practice time? This could be anything from engineering to magic to figure skating to video games to cooking.

Of course let's rule out the smartass answers like "being mentally healthy" to keep things interesting. 

To flesh it out further: we can first assume I'm a fairly average person- not particularly exceptional at anything, and perhaps above average at one or two things. Which would be the best for me to be above average at to win this? Then slowly dial up how remarkable of a person I am in that particular talent (hobbyist to state level champion, etc) or alternatively dial up my latent potential (i.e, make me smarter as a whole, or more hard working, etc) and then see what happens.

Am I always gonna lose to the bat unless I'm OP myself?

Edit: I suppose we may assume that I would also practice and improve my skill over that year, but I won't have the absurd dedication and willpower to hone it like Batman does.
gpt
Stand up comedy. At the core, Bruce Wayne is not a comedian. He can make jokes, he's not a robot, but he's a serious dude at heart, and making him compete in that regard isn't going to be something he'll excel at.