I'm definitely on Team Superman, as much as i agree that Batman's had a better history of consistent quality, i feel like the core message of Batman is kind of screwy, since Batman's basically all about principled revenge (so not like the Punisher or Huntress which is just a straight revenge fantasy).
Superman started as a power fantasy character, but gained more positive gravitas over time and became an aspirational figure.
Also partial to the speedsters on both sides of the line, Flash (esp. Wally West) and Quicksilver, the world's fastest man and the world's fastest asshole. Quicksilver hasn't been done justice in either the XMen or Avengers movies, imo.