That would depend on how much of the remaster was the tracks we have, and how much was everything else. I love the new WE and both configs are better, but I still miss the old one.
I've voted SO with the caveat that the configs we have aren't changed, or aren't changed much. I think all the tracks could do with more connections between configs (for all those X/Y layouts), and that's why I think SO - There are a million decorative roads that could be made functional that would lead to so many layouts.
Edit: ...and you left out AU which needs, at the very least, the invisible 20ft high walls between sections removed in X/Y mode.