paypal is ok if your using it for ebay cause i suppose it gives you protection from both sides (or is supposed to) bitcoin being non
reversable can also be a bad thing if your getting scammed.
In my opinion, in terms of convinience, paypal is better than bitcoin because you can send the payment quicker than bitcoin, deposit and withdraw instantly direct to your account, and shop online with paypal. However, in terms of limit in transaction, bitcoin has more capability to do such transaction as it doesn't requires limit. In my point of view, the reliability of the wallet depends on a person's need.
Nope paypal is not at all better than bitcoin. Because they have involved in email scamming attempts and they were consuming more charges for the transaction. Most of the people largely using paypal. Once all came to know about the features of bitcoin then everyone will switch the bitcoin only.