Naruto's clones with Cho odoma rasengan barrage, superior speed and strength > Sasuke's clones. Enton can be useful In some cases but it can be evaded and it wouldnt help sasuke that much when he gets completely outnumbered by Naruto's clones.
Sasuke wouldnt have the advantage in CQC at all and no Sasuke obviously cant sense or see NE.Not sure where you get this from. He just felt NE and that is only when enormous amount of it was gathered together.that doesnt mean he can sense any amount of it. He definitely cant see it either since pein couldnt.so yeah frog kata is a finisher move in CQC.
Diversions and Ameno are completely useless once Naruto starts making clones of himself. Sasuke wouldnt even know who is the real Naruto.
Sasuke with
clones With Katana, Chidori katana, all variants of chidori and a meterior busting chidori. Along with several enton variants and Preta path absorbing abilities. Adult Sasuke = Hokage Naruto in speed and the strength advantage is a much smaller gap then it was when they were teens. So yea Sasuke has a huge advantage with in CQC.
Sasuke said he feel/felt NE. You do know that's a synonym for sense right? Where in the manga Sasuke said 'the only reason I feel this NE because it's such a huge amount'? I'm not here to discuss your assumptions and speculations. Sasuke couldn't see it but sense it no doubt, and Sasuke and Nagato are two different people, don't understand the comparison here.
So again frog kata is useless, it would only get him killed. Clones would keep Naruto alive for a while but eventually he'll run out of chakra or Sasuke will take his chakra, or he'll simply make to many mistakes.