vote 1 naruto and sasuke without kurama and CSIt depends on how late into part 1 you are talking about for Naruto and Sasuke.
Example: If we are talking Haku fight Naruto and Sasuke, then I'd say Boruto might beat them by a hair (excluding Kurama's intervention). If we are talking VOTE 1 Naruto and Sasuke, then that is a different story.
I can't disagree with facts.Sarada is superior to most if not all,
Being a Uchiha with Sakuras intellect and power, Sarada can become stronger given the circumstances like Sasuke did, however it won't take as much time as it took with Sasuke because she has Sakura chakra control.
In terms of ninja ability and actually intellect none are above part 1 Sakura though, Sarada is about her level ...if she was trained