The short of it is that they have slight differences which you are probably unlikely to notice. As long as you match your capture space with your manipulation and printing spaces, it should all turn out WYSIWYG. i.e. choose one and stick with it. I use Adobe as my camera can shoot in it, I manipulate in PS, and my Epson 2400 supports this with it's "Darkroom Print" software.
Unless you have a fancy monitor, it can't even display the Adobe RGB color space, so you're fooling around with colors you can't see. Almost all labs print from sRGB. Phone yours and see what they say. If you are using an inkjet printer to make your prints, you might be able to get something extra out of Adobe RGB, but if you are getting Lightjet, or similar prints from a lab, it's going to be printed from sRGB.