The answers you get are probably not going to help you much I'm afraid.
Players between L85 and 89 are probably going to say Nike.
Those between L90 and 96 will say R11.
And those L97 and above will say Nike again.
The truth is the best set of irons is almost always going to be the ones available at the highest level and for the highest price.
For what it's worth I probably had the most fun here while using Raptures, sadly no longer available. The G10 would be a close second though. Also now gone.
For a real feeling of having played well when you hit a good shot the i15 are tough to beat though.