Their production levels are about equal, however Katy has the much better set list and from what I've heard so far her backing track hasn't been turned up so high for the majority of the songs unlike a lot of artRave videos (which I'm not bringing down, it is understandable as Gaga is doing
much better choreography than Katy)
Overall Prismatic just wins it, but it's only the opening night and things can easily change