Small block strength

Based on what you all have seen, which small blocks have:

1. the thickest main bearing saddles/webbing? (In a magazine article linked on this site there was an older 318 being built up and it looked like it could be fitted with 4 bolt mains!?)

2. the thickest cylinder walls? (I think someone already voiced their opinion on an '89 LA 360 block.)

3. the most consistent wall thickness or least core shift? (Later blocks because of machining improvements?)

4. the stoutest cam valley? (Did chrysler ever make sb without those huge windows in the cam webbing?)

or is there a book on all this stuff I should pick up?

Thanks