NexusMods I can understand, but... GameBanana? GameBanana has less than 30 mods for both K1 & K2 and the most modern mods were from over 5 years ago and some of the oldest mods are over 15 years old. What could GameBanana possibly have to make it come close to being a viable Kotor mod hub?
As for NesusMods, for me it's just another place where some good mods might be hosted... though sometimes there can be some really brain dead mods on there. As for you, I recommend you check both Deadlystream and NexusMods together. Think of it like going to the grocery store, sure... you might like one grocery store, but the grocery store across the street might have some deals you might also like. For example, there are some really neat AI Upscale mods on NexusMods not found on Deadlystream, and there are many mods on Deadlystream not found on NexusMods.
For an easier mod downloading experience, refer to the Kotor Community Mod Builds.