Take your pick. As they are not actually installed but go in their OWN directory on the SD card in APPS why not try them all and see which one you like best. You will need to create your own meta.xml or simply modify an existing one to go in the same directory and if you want a pic you need an icon.png as well.
SD:\APPS\WodeFlow\meta.xml, icon.png, boot.dol
SD:\APPS\WodeLoader\meta.xml, icon.png, boot.dol
the folder in apps can be called anything you like
I personally only have ever used WodeFlow.
Currently using WodeFlow r12. Just remember they must be renamed to boot.dol.
Info on WodeFlow: viewtopic.php?f=13&t=3049&p=28128#p28128
Info on CFG WodeLoader: viewtopic.php?f=13&t=2289
Again - best bet is for you try try them and see what is best for you