It all depends on your needs. If you want a good investment option, then Bitcoins are much better than Paypal. But if you're looking to buy something online from some unknown person then I recommend to use Paypal because they protect you from any scams. If you use Bitcoins to buy from an unknown person, then they may scam you and may not return your money as well. So both of them got advantages and disadvantages, and I use both for different purposes.
We can't remove that fact that a lot of stores are more relying into the usage of paypal for the payments. Because they are still not able to adopt bitcoins, but if we are just looking into the future and all stores are already done in adoption of bitcoin then for sure paypal will adopt it also. You are right, it depends on how you are going to use and need them.
Even though many stores starts accepting bitcoins but as a buyer If I don't know that store or first time visiting the site then as a buyer I will not use bitcoins because don't know whether they will ship the items or not. In that case, I still go with Paypal. Off course If the site is reputed then no problem in using bitcoins like I am already using bitcoins to buy gigs in Fiverr.