One length hair or layers on red hair

Hello everyone!  I wanted to get your opinions as to whether you prefer the look of one length hair or layers on hair that has a vibrant color, particularly red hair.  My hair is colored a medium-red/auburn shade  (similar to Lindsay Lohan's color prior to going blonde). 

Many of my friends keep telling me that I should have my hair layered (long layers) with an angle in front, in order to have more of an actual style to my hair.  I, however, tend to prefer my hair the way it is now, which is almost all one lenth (BSL). 

Because my haircolor is a very rich, vibrant color, I don't feel that it requires any layering in order to add more "pizazz". 

What do you think??  Layers or one length?