I just liked 1 liquid eyeliner in the past, and that's the Loreal Super Liner with the felt tip brush. It was the only liquid eyeliner I used.
Until a better one came along...
Maybelline Hyper Sharp Liner! A ultra-fine liner with a .05mm tip. It's very black & waterproof- hence, long-lasting. It also didn't burn/irritate my eyes or anything when I applied it close to my waterline. It is sooo....easy to use! I wish they make them all that way.
I saw it in Cleo Magazine, decided I must have it & got why the salesgirls at Watsons had doodles with liner and glitter on their eyes.