Final Reckoning was awesome. The only reason it suffered was a lack of Rebecca Ferguson, who is actually the secret reason the movies got better over time along with Pegg. My rankings after binging the movies in a week:
Rogue Nation
Dead Reckoning
Fallout
Final Reckoning
Ghost Protocol
1
3 (As said before PSH is a boss)
2
Stunt rankings:
Burj Khalifa
Bi-plane
Helicopter (both tied)
Halo Jump over Paris
Motorcycle jump
Plane grab
Rome car chase
Many more…
Worst: MI2 intro free climb
Villain Rankings:
PSH
Syndicate dude
Gabriel
Voight
Ghost Protocol nuclear guy
Cavill
Entity
Aussies