Firstly, I'm a serious football fan (it tends to be Americans who insist on using the term 'soccer'). Yes, I'm aware of the origin of the word, but I'm talking about the present day.
Anyway, have you even played FIFA 2005?! It's quite a good game actually, and there's room for different approaches to simulating football. For realism, I prefer PES4; but for outright fun, I love to play FIFA 2005. As for licences, PES4 can be easily patched with Kitserver/the Wolf patch- and the resulting kits etc look great! Many aspects of FIFA 2005 should be commended, such as Player Runs, and Off The Ball (when used properly). Okay, it is far more arcade-like than PES4, but it is still highly enjoyable. Come on, there's much more to it than Football Champ (90's arcade game). What's wrong with having fun? So what if it isn't a realistic representation of football! I'm glad that the two games are totally different.
FIFA 2005 is a great game for it's 'pick up and play' qualities- you can have so much fun playing against friends. PES4 is far more 'involved', and takes ages to learn how to play effectively. PES games are highly frustrating for the beginner, whereas FIFA is much more 'user-friendly'. FIFA 2004 was a complete joke, and think EA have just tweaked the passing in the 2005 version really. It's a much better game now, but EA are a bunch of lazy b******s when all's said and done. FIFA 2005 is what the 2004 version should have been.
My prefered game is PES4, but that doesn't stop me from enjoying FIFA 2005...
Realistic fun= PES4
Adrenaline-based fun= FIFA2005