While there's a very small chance you'll find somebody on here who has had a German and an Indonesian Paypal account, it might just be easier to go to the German and Indonesian websites for Paypal and compare the two.
And while I can't blame you for looking for the lowest fees, your initial question insinuates you may be under the impression that you'll pay less income tax with an Indonesian account... but it's important to keep in mind that you don't really get to choose which country you pay tax in (Offshore companies being an exception). In most cases, you usually have an obligation to pay tax in whatever country you spend the majority of the tax year in.