Incipient spin recognition: heavy buffet, undemanded roll
Incipient spin recovery: centralise controls, wait for rotation to stop, recover from resulting (probably unusual) attitude. If rotation doesn't stop use full spin recovery technique.
It is important to realise that it is a stalled condition with yaw - therefore stalling one wing more that the other, causing roll - is what is causing the incipient spin. So it's reducing the angle of attack which is important, not removing the yaw. Opposite rudder at the incipient stage will just cause a reversal of the roll unless you reduce the AoA. So of your options it is No. 2.
As far as I know this (centralising controls) works for all normallly configured aircraft, full spin recovery is different and type-specific.