Hello, I am an 18 year old guy and think of myself as being "predominantly gay."
I think that the Kinsey Scale is a very accurate thing to use when measuring sexuality.
I would probably measure myself between a 4 and a 5. Even though my 4/5 area could be seen as bisexual, I personally don't believe in the 3 on the Kinsey Scale (half and half bisexuality).
My reason:
I don't believe that a half and half bisexual person could get the same "personal pleasure" from viewing male and female "adult content." I personally can't really "get it up" for female "adult content", but I really wouldn't be against engaging in any activity with either gender. My attraction to men is stronger though. I view my personal scale on "personal pleasure" because I think it is the only real accurate way to measure it.
(I used dumb quotation things so I won't get banned or whatever lol)