The verdict
If you are a freelancer or sole trader and mix business and private money, I'd pick Revolut Pro first, because the separate account fixes a real problem. If you sell to consumers or customers abroad who like paying with an account they already trust, I'd add PayPal as a payment method.
They are not exclusive. PayPal sits at the payment step. Revolut Pro is where the money can land. Both charge fees on payments, and the rates depend on country, method and card type, so read the fee pages for your situation. Revolut Pro is for people without a registered company. If you incorporate, the vendor points you to Revolut Business.