I'm very definitely Ne dominant, which makes me either ENTP or ENFP. I score as both types on tests, with either thinking or feeling ahead by a margin of a few percentage points. Lately, I have more frequently been testing ENFP. When trying to analyze functions, I feel that I use both Fi and Ti pretty strongly, with one or the other being employed strongly in different times of my life. I'll use one more for awhile and then rebound back to the other. Sometimes I wonder if I naturally express a thinking preference that I've been socialized away from because I'm a chick, but then I remember being a child who cried when somebody squished a bug. It's difficult for me to differentiate between functions in general, though, and I think that I mistake Ne for other functions, particularly Fi.
Oh yeah and tertiary preferences. I know fuck-all about those. I employ both Fe and Te in grasping-at-straws attempts to improve my life. When I feel a lack of control, I make a lot of detailed schedules that I then completely fail to follow, and I make a lot of efforts to conform to the expectations of others.
For discussion's sake here are a few points that might sway me in either direction:
I am very moody and emotional.
I like things because I like them. Example: I'll put on a certain outfit because it "fits." I do things because they just feel right.
I care a lot about getting people to like me.
I like to discuss how I feel. I annoy the hell out of my INTJ boyfriend by doing this.
I spend a lot of time trying to figure out what I really want in life, what matters to me the most, and what I really value.
I love puzzles, and games, and logic. I like determining the rules by which they can be beaten.
I score very highly on abstract reasoning tests, such as IQ and standardized tests. This may be an N thing.
I love math, and I'm very good at it. I'm also great with probability theory, which I've read is a common ENTP interest.
Although I feel things very strongly, I oftentimes have trouble putting a name to what I'm feeling. It's difficult to describe an emotion, how it feels, and what makes me feel it. My best friend since childhood frequently helped me put feelings into words and understand them better.
I really like to systematize things. See: theory, personality. I also dislike many discussions about personality because I feel that people lack an in-depth understanding of the concepts and apply them willy-nilly. I find myself annoying when I say things like "oh that's so T!" or "oh that's clearly Fi at play" because, really, I don't have a much of a clue what I'm talking about. I suspect most people don't have much of a clue, either, including the people who began these theories, because personality is such an undefined concept. But I love analyzing undefined concepts, it's just that sometimes the imprecision involved in talking about them pisses me off.
Yeeeeeaaaah. And all this hemming and hawing about type is pretty unnecessary, since I'm obviously borderline either way, but I like it so whatever. God forbid I get any useful work done.