The side of the brain that i use the most is my right brain well its actually about even. If you would like to figure out which side you use the most check out the link and take the quiz.

LEFT BRAIN FUNCTIONS 

uses logic

detail oriented

facts rule

words and language

present and past

math and science

can comprehend

knowing

acknowledges

order/pattern perception

knows object name

reality based

forms strategies

practical

safe

RIGHT BRAIN FUNCTIONS

uses feeling

"big picture" oriented

imagination rules

symbols and images

present and future

philosophy & religion

can "get it" (i.e. meaning)

believes

appreciates

spatial perception

knows object function