agree
Bishops are not better than Knights

I find both knights and bishops tricky in blindfold. I think they've managed to capture my queen about equally many times.

I am going to tell you a "secret". A piece's power is determined by how many squares it can control. If a piece controls more square than another one, that piece is stronger.
Well, If you're telling everybody that, then how is it a "secret?"
LOL

Bishops tend to be considered slightly better than knights simply because as the game nears an end, it is much easier to open a position than close it.

On wider board variations such as Gothic / Capablanca - knights are valued about 2.5 pawns and bishop increase strenght slightly.
In normal chess however it always depend on the situation, but in general people tends to favour the bishop long range potential over the slow moving knight.

Well, from the very start the game is wide open. And I don't think the reason for their general superiority is very simple at all.

Well, from the very start the game is wide open.
What?! Half the squares are occupied!

Bishops are better in open positions, knights are better in closed. Its easier to open a game than close it. You can open a closed position but its hard to close an open position. Therefore bishops > Knights.
I made computers play blitz games with those positions on Arena.
Rybka won overwhelmingly, but overall, bishops were better in that tournament.