i actually posted about this 2 pages earlier. I got a chance to play the Fifa 14 demo on PS4 yesterday. And the biggest thing that jumped out to me was how the players felt. Momentum was present and the collisions looked great and very natural. The players felt like they had true weight. I was looking at their ankles to see how they planted and the reaction with each step.
Overall I didn't feel like there was a huge graphical jump (but who knows what version of the game I was playing) but the player movement looked a lot more fluid. If madden players move and feel like that the game will be much better.
One of the best things FIFA does which I hope Madden will emulate (I dont know if it will be this year) is what I call organic contact. When going for a none sliding tackle you see the defender reach out with his arm to grab the ball carrier. This is how blocks should work in madden the Olineman should be reaching out to grab the blitzer and not suction as others have said. Also this system and the header system should be used for the passing game.
The best analogy i can use would be to compare the feel of the players to driving cars in GTAV. you know the difference between a Range Rover, Suburban and Escalade. Their all SUVs but each feels much different in terms of acceleration and handling. When they collide with other objects the reactions vary depending on what they hit, current speed, angle of impact, etc. That's how the players felt in FIFA. Hopefully with their help Madden on pS4 will feel like this. Based on what they've said in their interviews I actually expect the players to feel like this we'll know in 3 weeks.