The only time I ever used the Rudder near the Stall, was to Spin an a/c that didn't want to.
THAT is VERY airplane-specific! If you ever tried using aileron input near stall in an A-4 Skyhawk, you'd get a VERY rude wakeup call! OTOH, it would turn very nicely with rudder while in a nose-up attitude at 3000+ FPM down...