I chose not to choose either: I chose something else.
In the first trilogy, this was a pretty simple choice - go with the Light. After all, in the first trilogy this was a straight up choice between good and evil, between joy and sorrow, between hate and love, and between life and death. Light and Dark were conceived in terms of Western symbology, and as in a classic Western fairy tale, love conquers all, providing the tool to defeat not only evil, but in complete conquest to redeem even in the most fallen soul.
But in the prequel trilogy, things change completely. Light and dark are conceived not in the terms of the original trilogy, but in the terms of the Yin and Yang. Compassion moves from the light side to the dark side. Love moves from the light side to the dark side. The conflict moves from between that of good and evil, but (in D&D terms) something closer to law versus chaos. The Jedi are revealed to be as despicable in many ways as the Sith, and the conflict between them not the drama of good vs. evil but the petty conflict of two tribes each of which desires absolute authority. The truly damning moment comes when Obi Wan abandons his best friend to burn, but Palpatine rushes to have compassion on his failed and beaten apprentice. Love isn't the solution to the problem, but (in the form of attachment) the cause of it. Proper behavior moves from something like right or wrong, to something closer to 'balance' - something no character in the trilogy actually displays least of all the Jedi.
So yeah, after the second trilogy, the only sane choice IS 'I chose something else'. I'm far more sympathetic after the prequel trilogy to the notion that the world would be better off without the stupid Jedi priesthood and their inhuman religion. You wouldn't want to side with the murderous Sith either, but the Jedi - merciless Mace, compassionless Yoda, Obi Wan and his 'true from a certain point of view' and casual mind control - don't come off that well either.