What are the benefits of using a foreign PP account?
There are none, unless you are talking about using a UK or US account.
US accounts have the least amount of restrictions for new users which really doesn't say much. It's more likely to be able to use PayPal for a longer time for online transactions with a U.S. based account, then a U.K. based account. The lowest and most restricted accounts are China and India based accounts, which are often limited at the first withdrawal.
Cliff: PayPal considers U.S. users less risky.