i prefer bullhorns on my road bike. i mounted my STIs right on the end where you'd expect them to be and it feels great. like i'm in command of a starship or something.
i've tried them on my track bikes, and i can see how people would like them, but i prefer either track drops or risers. on my pursuit bike, they looked great and felt comfortable hand position-wise, but that bike is already super low to the ground, so having 'horns with a 2" drop on that was...kind of overkill for riding on the street, plus i always felt like i was gonna end up going over the bars when i'd skid. zero rake, 650c fork + putting all of your weight on a point PAST the front wheel = DERRRRRRR CRUNCH! on my other bikes though, they feel alright. i just have them on the roadie because i can't STAND road drops and i don't like braking from the hoods.