Natsuki Crisis

Both have really realistic and well choreographed martial art fights. If you like Virtua Fighter, I'm sure you'll like Natsuki Crisis. 

With superior characters, animation, music, voice acting and plot points, Natsuki Crisis is like a better version of Kenichi, another pseudo-realistic high school battle series. 

Both anime's are about girl fighting (martial arts with some super power), and it's school against school. Our heroines are fighters but they don't fight with the intent of killing someone. Ikkitousen already has 4 seasones and it's quite possible there will be 5th, while Natsuki Crisis is only a 2 episode OVA and has that nice old school animation. 

In the grim darkness of the worst timeline, there is only wasted potential. Two series, cut short before they ever had a chance to get going. Excitement, action, girls kicking the crap out of people with their martial arts skills! Watch both and cry about how there isn't a full season of either of these.