Want to thank @adventureous for sparking the idea of this thread.
Of course everyone would like to know the best pharmacies that are out there, but it would also benefit people to know the WORST pharmacies as well.
For me, I believe rxonlinepharma (aka Midnight Moon) was the worst one I've dealt with. I placed my first and only order for phenobarbital in the spring of 2011. When I received I discovered that they were totally fake. It wasn't a large amount of money, and I'm glad I didn't place a bigger order. When I emailed them expressing my concern and dislike of their product, they ignored me. But a lot of people did swear by them. They had some hard to find medicines and good prices. But what I received contained no active ingredients whatsoever. I just hope it wasn't anything dangerous in them. I'm inclined to say that this was an isolated incident since a lot of people did praise them. But again, ignoring a dissatisfied customer isn't a good business practice.