Tough toss-up between Bats and Apples to the Core. Bats is incredible, of course. Among the catchiest songs this show has ever had, and certainly very distinct. Don't think I need to harp on the Danny Elfman connection as everyone has already done so over 9000 times (although I know a lot of people here weren't even born when some of his most iconic pieces were made). I've heard it more times than I can count, and it has few good remixes or covers from what I can find. I didn't even enjoy Aftermath's remix, and I typically love them. Certainly stands apart from nearly every other song I can recall, with more similarities to the This Day aria than anything else, at least according to my limited musical knowledge and lackluster critiquing abilities. Maybe it's just more challenging to pull off well. Apples to the Core was so endearing. For those who don't know, despite Twilight being my favorite pony, the element of loyalty is the one I most relate to and that has the strongest presence within me. This song itself is catchy enough, but the theme of familial loyalty, that they'll face anything together, is something that really touches me. My family and I have gone through some rough times recently, and I can't help but think of Apples to the Core every time something comes up to test us. What really surprised me about this song is how it made me realize how kindred Big Mac is to myself. Both of us tend to be very quiet and reserved (although I'm working on that), but despite our silence, nothing means more to us than those we love and we'll fly to their side at the drop of a hat. Apples to the Core... made me feel like an Apple, and it was wonderful! Not to mention that it was also very catchy and spawned a number of great remixes.