Anyone noticed how Nuka reminded Scar? Not only physically. He wanted to be king so bad too, he was kind of mad, he was always ignored, always this thought of being 'not enough'.
Nuka is my favourite character of SP. He's funny and crazy and tragic at the same time. Like, you know, it's different level, he's not completely like hyenas or whatever. For children watching SP, Nuka is just funny and maybe even disgusting freak, older ones can see the whole sad things about his personality and life. I think Disney people knew what they were doing while creating Nuka.
The Outlanders were the only reason I watch SP: I think the whole Kovu/Kiara and Simba things are sooooooo boring.
And seriously, I cried more on Nuka's death than on Mufasa's.