The planet scene was great. Wolfs investigation of the crashed ship was fun to watch also. There are three mini moments that really stand out to me as well.
1. After jesse's death, when the Predalien speared ricky with its tail. Right after dallas opens fire on it, there's a half second during the shot change when you see down the dimly lit hallway past the injured ricky, and the Predaliens tail flies through a door and out of sight as it escapes into the depths of the hospital. That's my favorite shot of the whole movie. Perfectly executed alien moment. It's just scary as hell.
2. When wolf is seen by the deputy, and his eyes shine in those dark woods. Terrifying. I think that's as close a moment to the original film as we've gotten since.
3. When wolf adds the extra gun inside the ship, and they both retract behind him. Because it was just so cool.
Honorable mention for the "bootyshot"