Man oh man, favorite vendor? That's tough, seriously.
Nearly every vendor I've bought from went the extra 5 miles to make sure I was satisfied, such is the nature of the beast at this time. It's extremely competative, and everyone wants your business. Rather than picking one, I'll just name a few honorable mentions...
Backwoods Brew - Don does customer service like he was taking care of one of his own children. His
juice is excellent, and he even went as far as calling me a few times, just to make sure my order was taken care of. We even just sat around, shooting the horse flies. Great guy, excellent product.
KickBassVapor - Bob and Missy are somewhat local to my neck of the woods. They give a damn. I've gotten many packages with nice notes, even one saying that we should meet families up and have dinner when they're in town. When their site was down, and I needed
juice, they helped me out. It just shows why they have such a raving fanbase. Their joose, as they call it, is top notch. Some of the most authentic flavors I've tried to date. Very clean and professional, plus, they usually throw in a free sampler in each order. Love me some KBV
Alien Visions - Ben makes one of my all time favorite juices, Boba's Bounty. If there's anything that needs being fixed, Ben is on it faster than the speed of a Tie Bomber (StarWars reference, it's a must). There is a reason why you see a flood of panic when Ben runs out of his signature juices, and there is no shortage of his customer fanbase. Because it goes to show, that if you make a great product and have excellent service, people will stick with you. Ben as both.
NiteLiteVapor - New company to me. I ordered a 10ml bottle of juice with some pg in it, because they didn't offer a straight vg version in my nic-strength. I added a note, asking if it were possible to acquire this juice in my nic-strength, in an all vg base. What did they do? They sent me a free 30ml bottle of 12mg 100%vg juice, for free. Their prices are great, the juice I tried is delicious, but their customer service is OVER the top. Definitely making a sound name for theirselves, and they've got my support.
There are other companies I've tried, and have given awesome service. I wish to mention these guys foremost, because they're the ones I am continually going to buy from. I will re-visit some of the other companies as well, when money is better, but these guys stuck out in my mind.