Well seeing as it's multi platform and theres no thread about the series, there should be one.
I recently finished contracts and I enjoyed it. But I felt the missions weren't as good as Silent Assasin. I managed too do one mission in 1 minute 30 secs on the dot. It was one of the Yakuza ones. I can't remember but it was a case of running to stairs, unpacking your rifle, waiting (as you do in this game) and then running. Discuss people.
I'm pretty sure I only enjoyed the first one and Blood Money. Even then, my enjoyment was minimal.
Yea, not too big a fan of the games, I never seem to really seem to have any interest to keep progressing in the game.
The first one was much too annoying. I got to about the third mission and gave up because there was only one way to kill the guy.
Blood Money looks good, though. I played the demo and was quite entertained - might be worth a rental.
The problem I find with the series is that there isnt much replay value. They need to sort that out.