I have always favored post bound albums, because I like to have my 2-page layouts continuous (right up next to each other). And, I like to be able to switch pages around and expand my albums. I don't create my scrapbook pages chronologically (rather, what inspires me while I'm scrapping), but I do keep all the pages from one year together randomly in one book.
The Snap Load system allows me to easily add pages, move pages around, and lets my albums hold TONS of pages without looking awkward or wobbly. It is fabulous! I'm changing ALL my albums over to Snap Load, and I recommend it to everyone I can!