Firstly, with the use of updated option files, you really can make your WE/PES game much more accurate. Formations, transfers and certain stats (under-rated/over-rated) for some players are all changed to suit their current state. These X-Port option files can be found here:-
www.showusmiracle.com/downloads.asp/
There actually is a CM4ToWE7 (not to mention, one for FE too) editor available which, as you can imagine, edits the CM4 player stas to WE7 form. I haven't tried it out myself, so can't trust it's reliability but I've heard mixed opinions. You can get it here:-
http://ibelgique.ifrance.com/Tam-da-rasta-man/CM4toWE7SC.msi
Note: If you don't have '.NET framework', you can't run this. To check if you have it, click on the
Start on your Windows desktop, selecting
Control Panel, and then double-clicking the
Add or Remove Programs icon. When that window appears, scroll through the list of applications. If you see Microsoft .NET Framework 1.1 listed, the latest version is already installed and you do not need to install it again. If you don't have it, you can get it from
Windows Update
On PES3 vs. FIFA 2004, I'll agree and say that online play is most likely the only thing FIFA 2004 has going for it. Other then that, it should be like most other FIFA offerings, with some general improvements. I'll approach it with an open mind, however, and only hope other FIFA incarnations can reach WE level. Competition is very healthy and could force Konami to get off their butts and give us even better titles. They've been procastinating with licensed kits for some time now, so that could be the vital push.