Japanese engine, i will keep its ahead of f22's engine. Rest of the case american jets will triumph.
When comes to amca, we dont know how good it will be. As you said it is the smallest jet, and we are repeating the same old mistake like smallest tejas. There is a report that AMCA will not house Astra inside its weapin bay because of the bay is small( i dont know how true it is) and DRDO to re work on astra. And missiles are going to be get longer body in future, fir longer interception people are going to develop bigger missiles. So logically speaking size of amca is not sufficient.
Turkey is already having some of the finest ew systems, Koreans are also one of the world leader when comes to electronics & they do have a very strong civilian electronic base.
As an indian, i want to believe amca will be world beater, but the above mentioned facts cannot be ignored.