Both have known bugs - I would have said 13.04 had fewer but you are experiencing a pretty severe issue with 13.04. As there is no obvious reason for the freezes, I would not have expected them to have been resolved by now.
Both have known bugs - I would have said 13.04 had fewer but you are experiencing a pretty severe issue with 13.04. As there is no obvious reason for the freezes, I would not have expected them to have been resolved by now.