Blonde or Red?

Well, I'm getting my hair done in a couple weeks (lol...for my bi-annual hair cut and color) and I'm wondering whether I should go with the red hair last time or go back to my blonde locks.

Currently it is not any kinda color...all the red has washed out so its kinda 'in hair limbo'.

So....
Blonde?
Or Red?
Blonde hair?
Or my red hair?

What do you think? I have till March 15 to figure this out...or I'm just gonna tell my hairdresser to 'surprise me'...and I don't think I want to tell her that...