Yes, isn’t anymore a battle between the two: thanks to the latest PTK release, you can have BOTH 
That’s what I did with my games The Goalkeeper and Quizland. I just added a small launcher window (default as DirectX to have more compatibility) and a simple checkbox that allows the user to choose between the two driver possibilities.
This way, I’m reducing the number of people that can’t play the demo by a very small percentage: if for some reason the DX version doesn’t work, they can simply try the Gl one and vice-versa.
A really winning solution!