Twins, Kindergarten Cop, and The Last Action Hero!!!!!!!!!!
Oh wait you said favorite not flop...
What is best in life?
To crush your enemies, see them driven before you, and to hear the lamentation of the women!
In order....
1. Total Recall
2. Conan the Barbarian
3. True Lies
4. Running Man
5. Predator
6. Terminator 2
7. Terminator
8. Commando
9. The Villian
Total Recall because of the very interesting premise and full of great Arnold quotes, plus it is one of the most under-rated B Movie actors of all time in Michael Ironside.
True lies is the only Arnold movie I liked! I'm not that impressed with his acting abilities!
ATM, that's one of my all time favorite movie quotes.