Stick with sRGB. sRGB just means 'simple rgb' and was born out of a collaboration between Microsoft and Hewlett Packard. The whole idea of sRGB is that if we're all running our PCs in an sRGB environment, we should all see pretty much the same colour etc in our images, given the vagaries of our different settings and different monitor calibrations.
If you run your system in Adobe RGB and upload to the web in that colour space, we'll all see different colours to you and it wont be for the better,
There are advantages in using Adobe RGB for printing as it is a wider colour space, but the differences aren't that noticable, and you really need t oknow what you're doing if yiou do your own printing in Adobe RGB OR find a commercial printer who really knows how to get the best out of Adobe RGB - if you can find one. Most commercial printers are happy to accept work from you in sRGB.