Mostly just the fact that you can change the aspect ratio on usb loader but you can't on Cfg Loader.
Edit:
Also, WiiFlow shows the downloaded games on my USB drive, but when clicking on them, does not work. And here is my SysCheck report.
SysCheck HDE v2.4.0 HacksDen Edition by JoostinOnline...
Hey, I wasn't sure if anyone knows how to make usb loader GX work with my USB drive on the vWii. It works completely fine on Cfg Loader, but usb loader cannot find the HDD. Games load perfectly on Cfg Loader but, as it has not been updated in a while, it lacks some of the newer features USB...
btw i feel this a good time to remind you guys that sea of thieves was made by rare, who also made DKC1-3 and DK64, alongside banjo kazooie and conker's bad fur day