I like the concept but am suspicious when I see a disproportionate amount of top ranked landed page sites, have ad banner stating they are YC funded.

Reminds me of how rankings for high schools that are supposed to be objective always faithfully reproduce the wealth differences between neighborhoods. This is even true in situations where clusters of moderately well compensated high-intellect workers (of a national lab or research Park or similar) consistently rank worse than the old money neighborhoods in the same cities.