I've never tried Liquid V so I can't comment on it, but I do have the Tickle Her Pink gel. I am VERY pleased with it, for me it really does work. I don't generally like the warming gels though, I find them to burn a bit. Tickle Her Pink is more of a cooling gel, so I prefer it to some of the other arousal gels/lubes out there. It creates a very gentle sensation and just makes me a bit more responsive to stimuli.
Liquid v all the way. I love the stuff. I use it 2-3 times a week, and my bottle is over half full after 6 months. My house friend loves the tickle her pink... She's a weirdo I guess, lol.