Beggining of part 2 Sasuke would win even without CS
No even without it, he beat 1000 fodders. He outclassed Yamato (who I believe can beat Neji). 3 tomoe Sasuke has what it takes to beat Neji high difficulty.Hah, let's it get carried away here. MS is what makes Sasuke so powerful. Without it, he stands little chance against beginning part 2 Neji
3T Sasuke wins low difference against Neji, because of 3T's immense reaction time window. Sasuke is a proficient ken and Shuriken-jutsu user. If Neji draws near, he can battle with Kusanagi or simply use Nagashi to paralyze him. His Katon attacks add to his arsenal. Any level above this is slaughter.
If Neji loses to anything, it will be Sasuke's amaterasu spam and enton release. Neji wont be able to rotate out of sasuke's attack for ever, which means that he will eventually run out of stamina after staying on the defense so long. Nothing in his early part 2 arsenal is enough to beat him.
@Kage Irrefutable logic, right there. Proves me wrong completely.