Wow man you have no idea what your talking about. I don't think I need to explain why since many people before me already have, but PRIDE in the old days was extremely scary. From the little I saw of it (and when I was new to MMA), I saw that Pride seemed to be a lot more explosive than the UFC. As a fool I also admit that I thought that Pride was so rough that lots of those fighters would eventually leave to the UFC since it was "easier".
I know what your thinking: "Bulls***! UFC ain easier than Pride!" Yeah I know. That was a while back remember? The difference is huge though and you cannot expect all those fighters to adjust quickly to the UFC while fighting in Pride for so long. That's my two cents.