The novel was great.
The movie First Blood is great. 
Rambo: First Blood - Part II is tolerable.
Then it all goes downhill. 
You did not care for 2008's
Rambo?I'd read somewhere that Stallone regretted
Rambo III so much, that he wanted desperately to correct everything that made it a flop in the 2008 installment. Most of the feedback I've heard regarding it was positive.