I think its definitely worth going a bit bigger especially considering the minimal price difference. It will be roomier, you have more seating options and will feel less claustrophobic.
Layout is personal preference. Generally speaking, I prefer the Broadway Elite over the V77L though I personally liked the old 435 more than I do the Broadway. Prices seem pretty good but would need to know what options are included (full foam, lights, spa frog, ozone, etc).