On a personal note, I prefer white over red because its really easier to pick a nice white rather than red. I've this fear of picking a red with strong tannin...leaving a dry aftertaste. Feel like the red just wipe out all the saliva out of my mouth...OK I"M BEING GROSS...kekeke
Plus...if the wine is meant to be fruity and aromatic (what the connoisseurs refer to as "bouquet" ), its more apparent in white wine, rather than red. Its hard to detect whatever fruit, cheery wood etc etc they say they had in a red. But if they say the white taste like passionfruit, apple, and berries....chances are, you can taste and smell it!
Well, for those watching their calories intake, this is another reason why WHITE WINE RULES!!
(got this from FEMALE magazine)