Kassel Studienkolleg ??

Hello everyone i have heard that kassel studienkolleg will be having studienkolleg for the last time and in case if someone fails a semester of fsp they would have to give fsp somewhere else in some different state or external fsp, plus many people are preferring kassel over darmstadt and frankfurt, so should i give kassel or not, plus i have also heard that they have only 24 seats for t kurs students and no. of students who give exam are 400, so should i prefer giving darmstadt or nevertheless kassel. My Math is not that good but my german is good(Goethe C1 & Testdaf). So what would be sensible to do?