^^^it wasn't part 2...that was on "i am...". i don't know about part 3.
they're both great songs but, like said before, uncomparable.
my guess is that rumor that nas was going to be on ESOM was simply b/c of the title. i actually wouldn't mind a remix (not really a remix...same beat) with nas and, here it comes, mase. that's right. if they get the right mase, he could be nasty on it.