It could be that more people use Gx than CFG. My first loader was Gx, so I like it. IMHO the difference between CFG and GX is the coverflow, Its my son who plays wii and he likes Gx even though daddy made 3 loaders available.I've seen tons of post on these forums with people having various issues with Gx.
Installing Gx's own forwarder is not that complicated. You just download the whole package (all in one) from the link given on the sticky of this section. unzip it copy the apps folder to your first partition (which is Fat 32, if you have more than one partition or one FAT 32). You can load it with homebrew channel. Once everything works smoothly install the forwarder wad, using a Wad Manager 1.7, which I prefer..
I have nothing against XFlak wonderful Modmii but when I looked at it last (~2 months ago) it was pro CFG, pro WBM etc.

