Eurodyne vs Unitronic vs Cobb AP

Hey guys, I have been trying to figure out which tune I want to go with. I've been leaning towards Cobb as it is a little more conservative and has things like launch control and flat foot shifting. Although I've heard some bad things about it like knock etc. I was curious what you guys think about these tunes what the pros and cons are. Also do either eurodyne or Unitronic have launch control and flat foot shifting?

Man there are so many threads about this already. Pretty much everyone has everything in the aftermarket tuning industry since it is just programming. Do your research, read other's opinions and then go with the one you like the most. Or after doing research, ask some real specifics and stuff that only people who have to tunes, and not google or the tuners website can answer. Head over to the GTI Tunes section of the forum, and read all those threads.