The Ballade is awesome. I played the Scherzo though hehe...so I am a bit biased towards that piece. I don't really care that a lot of people gravitate towards it, it has some extremely beautiful moments, and the climactic stuff before the recap is breathtaking.
The second Ballade is special though... I showed my sister (who has a very limited musical background) the piece, and explained how it begins in F major, goes through so much conflict, and ends so quietly... in a minor key. I kind of explained in simple terms that the ending isn't 'gift-wrapped', and that there's still some tensions up until the last few bars. She was like "whoaa.... that's spooky".
I don't know, the Ballade is beautiful... the Scherzo is more of a crowd pleaser. I like both about the same, for different reasons.