Help choosing b/w ST, BC or other coilovers e92 335i

Hey guys, I've been looking into a coilover kit for my e92 335i, I don't want to spend a fortune, and have really narrowed down my choices to 1000$ or less.

So I read phenomenal review on BC BR coilovers, but a buddy of mine told me to check out the ST coilovers, I wanted to get some feedback, yes I have read reviews on both but would like to hear some comparisons.

Thanks guys.