There's many but have no clue which make improvements to stadiums,pitches adboards kits sound and gameplay? any good ones? also i would love to see a Polish league one with stadiums from that league as well.

:)

go here

EPL Kits patch (http://www.breamster.com/articles/EEkEuFkFlV.php)

or else go in the downloads centre and then get boot raptor, kit raptor etc.