whenever i've hit the rev limiter, theres no doubt in my mind what just happened. the car literally wants to throttle you and beat you to death.
however, when it misfires, i sort of know that that wasn't the cars intended action. you can tell the car isn't happy, rather than plain ol'angry with you.
sound strange, its a very qualitative difference.
rev limiter will kick under load or no load. the timing may get worse under load.