The rules used are FIFA rules. The FIFA website contains this extensive list.
BOTH!
fifa 13 of course
You can have a goalkeeper as your virtual pro in FIFA 13 as you could in FIFA 12.
Well fifa 13 obviously is the best.More people have fifa (unless its in USA).Madden 13 is stiil good though.
yes there is FIFA 13, FIFA manager 13 and football BOSS
if u like fifa: fifa 13 is very good if u dont like fifa: u wont like it. if u never played fifa: check it out.
FIFA 13 comes out at 27 September 2012 this year Sam
No, pes demo 1 is, but no fifa 13 yet.
I play the friendly matches in fifa 13 as well as online matches too. My favorite team on fifa 13 is real madrid and i mostly prefer to play with that team because it also has good players as well as rating.
The rules of football play can be found online from The Rules of Play website. This website summarises the FIFA football rules, also available online, from the FIFA website (but these are 150 pages long).
Unfortunately you cannot get the Blue Square Premier League on FIFA 13. Nor will you be able to on FIFA 14.