It almost comes down to a Plato vs. Democratus debate dosen't it? Democratus would reduce every aspect down to numbers and the higher number "for" would indicate the path (perhaps 4x5 if other criteria beat square inches) while Plato would espouse that there is an immeasureable element of satisfaction that comes from working with, perhaps, an 8x10.

What a wierd thing to think about at 7:44 in the morning!