For flash tunes, I would definitely choose Cobb. As far as flash tunes go, they seem to yield the most power. They are also VERY active on the forums, unlike other flash tuners. With them being active in the community, along with many Cobb users on the forum, troubleshooting and getting assistance with your Cobb tune would be simple if you were to ever have an issue or question.
Twin Tebow power! + JB4