Hi there
As always it depends. In this case of your model, your flying style etc. What's also influencing is wether your airfield is noise-sensitive or not. For several years the APC 17x13 was my favourite, now I find the APC 18x10 to be best. I have also used the 18x12, but it's a little bit on the heavy side (for the engine). The N (narrow) 17" is not any good in my opinion, neiher is the 18x10PN (more noise and less performance than the normal 18x10). The 16.5" series is narrow bladed and not particulary good. Maybe the new 17x12W is a good one, I have not tried. From my humble experience with the engine (from '98), I can not understad how anybody can pass the 94db noise limit with a 17x10.
As you can see, the engine is very flexible and can do well with a lot of different props. For a good balance between power and noise, keep the static RPM between 7300 and 8000.
Best luck
Ola