No 5 - Wolverine vs Lady Deathstrike
From "X -Men 2" (Bryan Singer)
This is just one long, bad ass showdown, gang.
No 4 - The Avengers vs Loki
From Marvel's The Avengers (Joss Whedon)
Stupendous, long and elaborate. Just incredible to watch and the replay value is endless. The Hulk and gang do what it takes to stop Loki and his death army.