Now, before I begin, let me say, that my experience with cloth is very limited. We use the flushable inserts in our gDiapers, and only used folded Gerber cloth as a backup to a flushie at night. g's have brought me to the place where, if we have more children, I am ready to try cloth. That is one of the things I love about the gDiapers -- they are so versatile. I can continue to use the outer gpant and the liner and use cloth on the inside.
There are lots of great resources out there if you want to know more. I recommend The Nappy Shoppe http://www.nappyshoppe.com/. Sharni is a wealth of knowledge and has tested every diaper on her son before she stocks that kind in her shop.