"Have you tried both approaches yourself, if so any conclusions?"
Thanks, guys and yeah that's what prompted my to ask the question... I learned as a youngster to go from the skin and work your way out and have done that since getting back into the hobby as an adult (I'm still new at this). I'm doing my first block in all the "major areas first" technique as we speak and thought I'd ask just to see what others thought, things to look for as I went. I'm doing a Napoleonic Grenadier at the moment, so really only a few large areas of different colors... not sure what I think yet, but not sure if one method would be better over another on this guy specifically. I've a few books, read a bunch of SBS, etc. and seen both approaches, but never really any points on pros/cons (except maybe blocking in first gives better idea of overall look sooner). Most books it seems one is always preferred by the author over the other as it seems only one is referenced. *shrug*
I guess it's best to consider each piece on a case by case basis; that seems like the most sound approach.