Heya!
So the original release is a d10-based system that I designed specifically for it, while Neology uses an adaptation of my game Superfantasy, which is based around d6 pools and creative/narrative use of power sets.
The Sword Saints: Neology files contain a book which is more or less just the rules, character options, and enemies, and a separate file containing the setting info. If you wanted a system designed for more flexible setting-building (i.e. as you suggested more high fantasy and less science fantasy), I'd venture to say Neology would probably be the better choice.
The original Sword Saints is more of a self-contained product, and the fact that Neology is split into two books could help you to separate out stuff you aren't as interested in with regards to the setting.
Also, Superfantasy is- as the name suggests- built for telling pop fantasy stories, and may be worth checking out as well.