Best: Drive-Thru Records
I've ordered a hundred records from them in the last couple years and received them almost too promptly (like within a day). Their office line did call me once in the middle of the night, but it must have been a computer glitch. Also, they use a weird shipping service, like there delivery guy wears this weird oddly vintage overcoat and those tiny circular glasses and a long shaggy beard (it doesn't seem like any of the major shippers would allow that dress code). He also doesn't say you're welcome, but gives a weird wave.