I'm going with "Til It Happens to You" because while "Wide Awake" has gorgeous production, the "I'm wide awake" repeated all the way through the song is very annoying and I feel like it doesn't really say much while trying to be deep.
I love both but they're very different. Wide Awake is polished and has a solid hook, it's a great Pop song. TIHTY is more emotional and leaves a stronger emotional impact.
