I would put it on a Jedi because it looks more like a Jedi set in some aspects. The helmet looks very similar to one that JCs can use, not having the same sort of menace that Sith Headgear normally have. The robe, while not sharing the jedi colors, doesn't really match the look that most sith have. There are exceptions to the role of course but even with the odd belt, it does make me think Jedi. It helps that Jedi Shadow is a class that I can imagine wearing this, more so if they're darkside.