Poll: Do you have a marketplace preference? CafePress? Spreadshirt? Something else?

I'm curious if anyone out there has experience with these online marketplaces that sell merchandise like I'm using here and if they have a preference. There's also a comment area below if you would like to add more information about your opinion. I'm open to learning as much as I can about the industry I'm trying to bust into.

Your answer could be based on whether you prefer to shop there or whether you prefer to sell there. Both works..