I agree that Paid in Full is more versatile in the way that you described, but that doesn't factor in much for me.

I'll say this, Nas didn't have 4 albums of that caliber, in a row, the way Rakim did with his first four. But It Was Written is as good as any Rakim album not named Paid in Full, then when you factor in the run of Stillmatic to Lost Tapes, Rakim never returned to past glory the way Nas did. Then when Nas dropped another near classic in Life is Good

Not to mention all the classic guest appearances.
Slaying Jay in the battle. Imagine if Ra had gone directly at Kane and killed him

At the end of the day, I'm fine with anyone saying "Ra's first four albums are amazing and Nas was never that consistent" I just look at everything and for me I'm going with Nas.