I own both, but have only played Phantom Hourglass. I gave up on it after hitting the Temple of the Ocean King for like the fourth time. It does eventually let you skip the first half of it, but it got so monotonous to me that I just couldn't handle it anymore. I haven't started Spirit Tracks yet, but that's just because I don't think it feels right since I haven't finished Phantom Hourglass. That said, I feel like Spirit Tracks can only be an improvement.









