The last two sets of irons I've owned have been Mizuno and I couldn't see myself playing anything else. First were the Mx-200's and now I've moved on to Mp-69's.
That being said I would say its tough to tell you what irons to play based only on your handicap. You could strike the ball great but struggle putting or off the tee, or vice versa. Honestly, I would say take all the forgiveness you can get either way. Even some pro's are opting for a more forgiving iron, just because theres nobody who catches it perfectly center every swing. Why not take all the advantages you can get?