WiiGSC is pretty straightforward. It also does not require you to have a usbloader program installed like gx or wiiflow. Just pick the ISO or wbfs file and choose the "recommended" loader. It creates the channel with banners and everything. Games that will banner brick are "A boy and his blob", "Mario Party 9" and something else I can't remember. WIIGSC has a built in list of the games and will not make a channel for them.
As always make sure you have bootmii or priiloader before installing these channels just in case.
[Edit] It also lets you choose if loading from sd or usb when creating the channel. I used it on my wii and it worked fine. Been too afraid to use it so much on the vwii because of the lack of brick protection.