Yeah not to start the flame war, but at first glance the PES tactics for those signature guys looked more consistent. Both games seem to have the moments right where Messi and Neymar are terrifying and do what they do in real life well, but moment to moment at least in a positional sense Barcelona in PES performed better in that one-game sample.
(Messi in PES was a turnover machine though, which is not canon!)