As for the best wave of Hero Factory, it's a hard pick between Breakout and Brain Attack. However, I would give it to Breakout by a very small margin because it was more relevant to the Hero Factory story. The TV animations were better, there were more sets released, it didn't exclude Stringer and Nex and it just made much more sense relative to Hero Factory. Nevertheless, I'd say Brain Attack did better in the sets department overall as they were much more complex (Jet Rocka and Dragon Bolt if you will). Following Breakout, every episode would have a little cliffhanger in the end which I didn't really like. For Breakout, it was the character in the end like Von Nebula or the Brain Creator clip. For Brain Attack, it was not all the brains were eliminated. For Invasion from Below, there was still an unhatched jumper on the Hero Pod. Even so, I still believe Breakout and Brain Attack take the overall win for the best wave of Hero Factory, the former coming out slightly ahead.