Should i go blonde or brunette?

hi
im torn between going blonde for a noticable dramatic change or brunette for a more subtle natural change, this is wot i look like:
http://www.modelmayhem0o0com/pic.php?pic_i…

with my the skin colour, eye colour and everything, what do you think would be best, blonde or brunette? this is what i mean with the shade of blonde. like a really icy cool blonde:
http://www.graziadaily.co.uk/pub/21publi…
and it would be this kind of brunette:
http://www.loreal-paris.co.uk/img/l10n/p…

btw my natural hair colour is NOT black; that hair there is dyed lol. x x