I know that identical twins will have different personalities, but I still think that they are more similar to one another in terms of personality than fraternal twins.
I have both identical twins and fraternal twins in my friend group. The fraternal twins are nothing like each other. They have totally opposite personalities and like different things.
The identical twin boys, on the other hand, are fairly similar. They enjoy many of the same hobbies, have lots of mutual friends and spend time together.