I use a combination of both:
on Nova Launcher
I337UCUFNB1_4.4_Rootable_Stock_Odin_tar (This version is rootable with towelroot)
These are "All-in-One" files, extract the .tar file and flash in PDA Slot in Odin(AP in Odin v3.09+).
I337UCUFNB1 4.4 System ...
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