I like blue too, today it's more like green, which I like esp in combo with a complementary purple.
'cause:
Blue are the life-giving waters taken for granted,
They quietly understand
Once happy turquoise armies lay opposite, ready,
But wonder why the fight is on
[Jimi Hendrix, Axis: Bold as Love]
(actually I tend to eschew favorite anythings, as I am in constant flux.. (or more or less, as they say in the trade)