Most Helpful Guy
No, similar personalities rarely work together, you'll get bored.
Whilst you can have similar characteristics, such as kind and warm-hearted, both being say risk-averse, calculated and not very adventurous could lead to a very boring relationship.
Similarly, two very outgoing, adventurous people could easily see themselves at loggerheads, getting jealous because of their naturally outgoing personalities and clash that way.
You need a mix. Opposites attract and it's true.
Most Helpful Girl
I would need someone to compliment me, not be the same exact way as I am. I don't find myself annoying, but to have someone JUST LIKE ME would be. So no... haha.