For obvious reasons I'm partial to Fi. Needless to say, it's a nuisance and a burden much of the time, but I'm at an age now where it's become forged through fire.
But what I like about it is that it's allowed me to really figure out who I am, what's important to me -- most importantly, how to extricate myself from external expectations and pressures (i.e. The Rat Race) and really just live life in the way that I think is right.
It is my observation that many extraverts in particular struggle with the tendency to be sheeple. Introverts with Fe are also subject to this, though in a qualitatively distinct fashion.
As for the others...
Ni is visionary and grandiose -- although, being an introverted function, I don't get to see it very much even in the INJs I know. I have said before that I imagine it's very badass to always be looking into the future and then rendering these visions reality that way.
Ne is just adorable -- I am primarily attracted to NP women. Also had an ENP buddy who was a drug addict and the embodiment of Ne (I think he was like this partly because he was always on amphetamines and weed in the time I knew him). Was endlessly spouting off ideas and interconnections at quite an alarming pace really. He was reminiscent of Socrates, too -- meaning that he would get into debates with people left and right. He was really something...
Ti is badass -- like the idea of personalized understandings of any given subject matter that is, internally, logically flawless.
Te is pretty meh. Guess I can appreciate the straightforwardness though.
Si is one I'm garnering a much better appreciation for now that I'm in my mid-20s. Have an ISTJ friend I like talking to and an ESFJ. My parents are also SJs. I have learned the value of having a work ethic from them, at the very least.
Se is all right. My ESP friends tend to be too promiscuous, though---kinda feel bad for them. But they certainly have more fun than most.
Fe is all right. I like the teddy-bear-ness but not the manipulation and disingenuousness.