I personally think the best trailers play off of the hype and elevation factor of the second. Objectively it's hard to say what's the best, but they certainly are the most effective.
Phantom menance was a "good" trailer, but because of the context..wow.
Same for the matrix Reloaded, Same for Blade 2(for me anyway), Same for Spiderman, Same for Joker looking like the Crow in TDK trailer, and same for Return of the Fallen.
These are about the best trailers imo cause they get these insane reactions that out class any trailer for an original property. Trailers for second sequels get actually bigger reactions (if the sequel was good) but nothing beats the first sequel.
Snyder just makes beautiful trailers and that's that. I can't wait to see the superman footage he shoots come in. Cavil is soooo damn perfect it's insane.
excuse me while I go watch my blade two trailer.