i like using both...bitcoin is better
I agree bitcoin is better than paypal. And I have some feeling that paypal is going to adopt bitcoin. SO that clearly says that bitcoin is better than paypal. Because if paypal is better than bitcoin, then the developers of bitcoin are the ones who are going to ask paypal to adopt their service. But it tends that paypal is begging for bitcoins adoption.
Personally Im doubtful of that precisely for the reasons you state, if PayPal did that it will be like accepting defeat they will be saying to the world bitcoin beat us and now in order to survive we need to accept it and become part of our fierce adversary.