No because mine will invariably be better.
Sometimes it's true. More accurate perceptions will have better probability spreads than less accurate ones, but even a poor accuracy perception can get lucky.
Yes, when neither one of you don't know...
Like another poster said, when neither of you know the answer, any guesses might be valid. So in that case it might be true.
*struggles with urge to correct "you're"*<br />
meh. I agree with what you're trying to say, but your use of "you're" is incorrect.<br />
Not usually a grammar nazi but this particular mistake drives me nuts.