I'm french, so again, can't word in a perfect english.
I'm big fan of PES, playing actualy on Winning Eleven 9 on PS2. Just in few words, PES 5 PSP is similar than PS2 version, same teams, same game mode, transfert update. At the beginning, it's hard to take in hand the PSP version because the L & R are strange to play. After two or three hours of play, I can tell to you that game is amazing, looks like PS2 version, more fast than Winning Eleven 9 PS2. The players and the stadium are amazing too for PSP, it's the first good and the best football game on mobile plateform. I've met Seabass, producer of WE series, he said to me that it's very difficult to bring PES on PSP. By the way, I have played too Fifa 2006 on PSP, but it's bad.