TV Tokyo (ended 2007)
Itachi would win. It's not really that close to be honest.
Sasuke = Itachi- Taijutsu
Itachi > Sasuke- Genjutsu
Itachi = Sasuke - Ninjutsu (Although you can Say Itachi is better)
Itachi's Susanoo > Sasuke's Susanoo
Itachi's Tsyokomi > Sasuke's Tstokomi
Sasuke > Itachi - Stamina Itachi > Sasuke - Intelligence
Sasuke's Amaterasu > Itachi's Amaterasu
Itachi = Sasuke- Speed
So Itachi has him in 4 categories that you need to be able to win. Sasuke wins in 2. Equal to each other in 3.
|I didn't say amount of Jutsus, I simply said Ninjutsu. Itachi is much better at using his Ninjutsu then Sasuke is because of his intelligence. Also Itachi's hand movements are so fast that Kakashi's Sharingan could barely see it. There is a reason why Itachi is rated perfect in 5 different categories in the databook (Seal Knowledge, Intelligence, Genjutsu, Ninjutsu, and Taijutsu). That's not mentioning that every trump card Sasuke has, Itachi has a better one (His Tsukuyomi, Susanoo and Amaterasu are all better then Sasuke's).|
I don't think Sasuke's genjutsu abilities are up to par with Itachi's but I could be way wrong since it's been awhile since I've read the latest chapters xD
I would go with Sasuke now for the win
edit: For some reason the spoiler tags are not working for meso spoiler of latest Naruto manga below don't look if your not up to date.
Sasuke has the Eternal Mangekyo Sharingan now.