neji would win, he is not the only jounin out of all the persons of his age group for nothing, neji is also one of the top jounin's in the leaf village and he was know as a prodigy, he was the #1 rookie and the #1 genin, the rotation is something which neji has done in his own way, the basis for rotation is releasing chakra from the users body, the average amount of place's a ninja can release chakra from is 2-3 and neji can release chakra up 7 places, he them rotates at a high speed thus blocking the attacker and repelling them in the process.
the aburame clan was know as a strong clan in the village but huga clan was known as the 3rd strongest clan with their advanced form of taijutsu, shino is can not match up against neji, neji is a fighter, he is assigned to combat mission unlike shino which for infiltration and strategic missions, the fact is shino can not defeat neji