A lot of prop selection depends on how you fly. Many people use an APC 11.5-4 on .46 engines. It revs more and gives slightly less thrust, but your control is better. The rpms seem to be in a better place on the power band so you can make 1 click corrections without the plane climbing or dropping rapidly. I have also seem a Master Airscrew 11-4 on .46s on 3D planes.

As for the .61, if you just want to go out and blast upward, by all means get a longer prop like a 14 or 15 inch. For fine control in low down 3D maneuvers, I'd go with the APC 13-4W prop. I would also try the 14-4W, but I think it will give you too much climb per throttle change. I have used a Zinger wood 14-4 and it spools up quickly.

There doesn't seem to be the same quantity of selection for the .61 as there is for a .46. It may be that the .46s rev quickly and have a lot of power for the weight, but I have never really liked a .61 in a 3D plane. .61s tend to be a heavy engine. Your .75s and .91s are built in the same case. Like I said, it's what you like.