It will a little depend on the motor, hence the question. Jabs are direct drive and have more limited prop options to make use of the RPM range - I've heard mainly the Sensinich GA 2-blade. Same issue with the UL Power, for which Catto is now making a prop I think. Not sure on this issue - I would email the prop mfg's.
For the 912S, the choices are numerous. As Tom mentions, I can't say enough good about the Kiev as long as you don't break it - complete props are likely in stock, but a replacement blade will take a while. Warps are really durable, but a bit heavier. make sure to the get taper tip.
Hope to try out the whirlwind against my Kiev in the coming months. It looks great and fits the Warp hub - and reports are very favorable.
Go check this out for a number of comparisons of other props, most made outside the US www.stolspeed.com
, look for prop comparison.
There is also DUC Helices props of France, Woodcomp, and Sensinich 3-blade (Kiev copy).