Method (how hard you're tickling), mood, how the lee is feeling psychologically/emotionally would all affect that (their sensitivity, reception of touch and their response to said touch), though. I don't think you've given enough information to properly come to a conclusion like that.
If you're assuming some sort of consistency between all of those elements per person then, yeah, different people respond differently. I'm inclined to say personality has an effect on, or a correlation to, the response. The few people I've tickled were heavy laughers and I associate with their fun loving/out-going personalities, but whatever.
I'm not sure what the purpose of your post is, though. There is some insinuation that whatever clips you're thinking of or referencing are fake because it's not similar to what you've experienced and I'm inclined to think that that is the thesis statement of your post, but I'm not sure. If that's the case then, well, it depends on the clips/producers you're referencing but I've only seen a few clips that seemed fake. Does that mean they're 100% real? No. I can't attest to that. But I've never noticed inconsistencies within a clip that would indicate that one response was faked over another. Whatever getting long wnded.
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