Itachi.
Itachi has already bested kakashi in CQC (although you could argue that kakashi intended to get caught) and Kakashi can barely keep up with Itachi's seal forming speed or shuriken jutsu.
Not mention kakashi needs his sharingan to accurately use his lighting variants.
Exactly. Everyone forgets Raikiri is essentially useless without the sharingan precog.
That was when he was a kid, there's no reason why it's affect him now.
Notice he always uses his sharingan in conjuction with this, even in adulthood.That was when he was a kid,
there's no reason why it's affect him now.
That was when he was a kid, there's no reason why it's affect him now.