Runaway props can be the result of two different problems.
(Piston engine A/C.)
If the runaway is caused by a malfunctioning govenor and there is a high enough power setting there could well be a yaw toward the good engine.
If on the other hand the runaway is because the prop has become disconnected from the crankshaft or nosecase reduction then the yaw will be enormous toward the failed engine.
When I flew for Austin Airways we lost one of our PBY's due to a runaway prop they could not feather. In that case it was a prop disconnect ( Nosecase failure )and the crew could only keep straight by slowing to just above stall speed, however the driftdown was quite signifigant and they crashed in the bush. This type of a runaway must be frightening as the prop speed would be awesome, with a corresponding drag that is almost impossible to overcome with the flight controls.
( That was C-FAAD Pigboat. )
So it is possible to have either a yaw into the failed engine or into the good engine, depends on a lot of factors.
However most of us agree that no matter what happens think before you act. I like the wind the clock one!!
Pilots who automatically snap into rote learned checks and actions without first thinking about W.T.F. is happening should never be given command in my humble opinion.
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The hardest thing about flying is knowing when to say no.