I have tried Halo liquids for the first time few days ago. My favourit liquids are Prime 15 and Tribeca, than Torque56. I don't like at all Freedom juice, Midnight apple and Captain Jack. HX3 is ok, but I don't like menthol liquids.
I haven't tried Prime yet, other than a quick vape off a friend's setup. Tasted good. That's next on my list.
Torque...for me it just keeps getting better and better. The flavor seems to change back and forth. Some days a minty tobacco then the mint disappears for a few days and I get a whole other flavor. It's very sensitive to voltage and clearo setup (what cotton I'm using, etc). Sweet, spicy...I love it.
HX3 has changed flavors over the course of a month. At first, was all menthol and grape-ish. Now it's settled and become mellow. I taste more tobacco undertones.
Bella has also drastically changed over a month. At first, really earthy. Now...it's bordering on a mentholated tobacco, with chocolate undertones (at least to my taste buds).
Tribeca wasn't bad, but didn't quite agree with me. My girlfriend swears by it, though. And it smells wonderful.