I liked 5 as 3 and 4 were so paper thin in terms of character. In terms of having substance it was an improvement. The cliches were all in 4 with the overblown killing machine, East against West, power pop workouts etc. People say 5 is poor but I disagree. I like it and if you don't like 5 then liking 4 means you are a fan of exercise videos more than anything else. There is a story in 5. Not bad at all. It explores new ground with the end of a career and having to start again.