One of my biggest long-term disappointments with the prequels is that they killed off Darth Maul too soon. I would much rather have had him last at least into Attack of the Clones. :(
BTW, what's this I hear about Rogue Squadron in TPM:R? I'm a little confused, because I thought that Rogue Squadron was founded sometime between ANH and ESB (and "Rogue" is a term related to "Rebel," thus it makes sense as an extension of the Rebel Alliance)?