Thats one way of categorizing them. But you could also view it from different standpoints, such as how much damage did they do?

Did they squeal on one guy, two guys, or did they give up dozens of guys, hundreds of guys? Did they devastate an entire crew?

How many guys did they actually put in the can? Was their testimony top notch? Or was it mostly secondhand bullshit that didn't really strike home?
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Don't get me wrong, for my money, just as I stated in the other thread I started..."A Rat is a Rat is a Rat!" They're all the same for me.

Some have more access to info. Some have more important info. Some destroy guys. Some just graze guys. But it makes no difference, because, in the end, their mindset is always the same, 99.999% of the time...they're usually bailing out off somebody else's back...at someone else's expense.