NBC Grill Brew, from what I recall a few years ago, had a really solid IPA selection. Included double and triple IPAs as well. Inside the park I'm not 100% positive, but Moe's or Duff brewer might be your best bet. Don't worry, Im picky about my beers as well!
Best lunch, Mythos. Hands down, no contest. Just in my opinion, but lunch OR dinner there once is a must. Enjoy your time!!!