Kiz - no need to apologise - the posters above are knowledgable but are just ribbing you a bit... It is not intended to be a newbie bash - they were just born with a personality disorder and like to wear ladies underwear.
Personally I would always size amp wise battery, esc, motor in decending order.
Battery is the life blood of your car (heart motor, ESC arteries) - don't try to skimp else you won't get the results you are looking for.
On ladies or their underwear? Or the lamp shade? I like blue undies as they complement my eyes. Mesh lamp shades are the safest as you can kinda see thru them and not walk into as much stuff. As far as color preference on ladies goes, well as long as they are hot who cares.