Green.
Dinobot from Beast Wars, the Shakespeare-quoting turncoat who sacrificed himself to save the entire human race, had green eye lasers.
And he was awesome.
(
emvee cruor deo cruoris,
Tue 15 Feb 2011, 22:44,
archived)
i agree
but red seems to have won the crowd
(
Smash Monkey lowering the tone of the whole internet,
Tue 15 Feb 2011, 22:54,
archived)