If the choice is to tap or not to tap, in general I'd say tap. The idea that you are weak for tapping is an idea rooted in machismo run amok. Yes, some people tap very early and don't have the kind of composure you need when struggling against a threatening submission attempt. But the idea that you are a de facto wimp by virtue of tapping is asinine. If you want to get choked unconscious, be my guest. And if you're willing to sustain serious shoulder, knee, or elbow damage because you want to look tough, well, that's your professional career and health to worry about, not mine. If being tough and unable to compete is your idea of making the right choices, don't let me stand in your way.
Joe Lauzon makes this point effectively in his Boston Herald TUF 5 wrap-up, yet actually goes one step further. Lauzon argues it's ok to not tap if the reason is to maximize the time you have to escape a submission attempt. Notable quote:
It was a transparent ploy, and the guys weren't hearing it. Marlon says he will never tap in a fight. His career in MMA will be short-lived because sooner or later he will be caught in something that will do serious damage and he will be badly hurt. Or he will be shown to be a liar like the rest of his stories, and tap. Either way, he looks like an idiot.