So I have to say that brave witches is better that Strike witches in some some aspects. Brave witches have more drama and a complex character development for protagonist and the others characters. The plot is more focus in tell a history than show fanservice, I have a problem with strike witches that every 5 minutes has some form of fan service not counting the filler chapters that is all about fan service, in breve witch the plot in mandatory, we still have some form of fan service but is like every other normal series. The lore of the WWII is still present like Strickwitches, and I have to say is very well done (that for me is the main reason for watch). Strike and Brave witches share the same world but the history telling is better for me in Brave witches in comparation for at least the first season of Strike witches.
I can see my very much recommendation this series than the original, don't get me wrong the original series is very good but for persons who can't stand fan service they can't watch it, on the other hand this is totally watchable for anyone. I would like to see more of the hikari path and the 502.