Well recently I've actually played online as Everton mostly (EA has Straq as default striker instead of Jelavic for some reason, at least for me). I could go on and on how terrible I thought EA has always rated our players, but for the first time in forever I thought our squad ratings of late have been pretty fair (Cahill 80, Osman 80, Fellaini 81), and possibly slightly overrated for some players (Distin and Jagielka have been at or right around 80 all season, even though niether of them have had a great run of form this season, especially recently).
When I play as another 4-star team, I dabble with either Corinthians or Mexico (none of my US mates know about this). When I go 5-star, I play with City and end up playing against Real Madrid 9 times out of 10.