Hello and welcome to the forums. You are going to love it here. At the forums we are all bronies and pegasisters and we show love here not hate so welcome and feel the love.
I love pinkie pie because in many ways I'm a lot like her and she is best pony because she is pinkie pie. Even in the movies she is just as enjoyable to watch.
Luna is best pony and princess so get over it. She is awesome and I can't wait to see how she turns out in season five so until then "keep on rockin it"