Frame rate is a little choppy in some cut scenes. Gameplay is smooth.
Haven't played much online.
Player switching is fine for me with semi-assisted.
Not sure about online camera angles.
If you plan on playing a lot of online go with FIFA. Problem is I have had trouble finding someone to play against, because I use full manual settings.
If not go with PES.
If I had to choose one it would be PES, as others have said it is more organic. Feels more alive to me. Gameplay is amazing.
I want to abandon PES, but I just can't. It has more soul.
Check the Option File thread. The instructions of how to use them are on the first post. You must use a BLUS option file, it is for the USA.
I think there are a few for the 360 available.