Bisexuality: Is it really equal?

Before I begin I want to say that as a bisexual this topic is not meant to offend anyone, it is simply a point of view, which I strongly believe everyone is entitled to have.

So bisexuality, is it really equal? Bisexuality by definition is someone who has romantic and/or sexual relations with other people of more than one sex, but does this mean that you are attracted to both sexes equally?

Bisexuality is extremely complex, when you get down to it you are pretty much looking for the same thing in two completely different beings. It's like choosing between apples and oranges, sure they are both delicious but they are completely different so how can you truly put them on an equal level. Remembering Alice (The L Word): "I look for the same things in a man as I do in a woman", so sure you may be able to look for the same thing but that does not mean you are going to find it. Sticking with the character of Alice, even though she was all about equality between men and woman she herself didnt date any guy during the show. So is this what we portray as bisexuals? Are there are  "straight" bisexuals and "gay" ones. How many self proclaimed bisexuals are there out there that have never shared more than a kiss with a woman while having dated men all their lives. Just like there are bisexuals that have not had relationships with men for years. 

Can there ever be middle ground in bisexuality? If that were true wouldn't that have to mean that evey bisexual would basically have  equal number of relationships with men as woman? Is that even possible? 

And if bisexuality isn't equal than what are the affecting factors that make a person lean more to one side than the other?

Let me know your thoughts!