rightly or wrongly the perception is that american owners have no real affinity for the game, they didnt grow up watching it or playing it and the only reason they are over here is because they sense an opportunity to make a quick buck.
lets face it the likes of tom`man ham`hicks, george gillette and the glazers have been controversial figures over here and although fsg are probably the best of all the american owners they havent exactly helped dispel any myths either, praising the arsenal model (when they havent won anything for years but made substantial profits), rubbishing the domestic cups (basically because there`s no money in them) and even saying they were open to the idea of a 39th game (a proposal so ludicrous even H&G were against it) hasnt eased any fears fans may have had post H&G.
but ethanr is right, it wasnt american owners who created the premier league (when the top 20 clubs put two fingers up to the other 70 (and also the grassroots of the game, ripping up over a century of tradition)).
it was british chairmen, in the late 80`s (when thatchers greed is good message was resonating with rich businessmen) that opened pandora`s box, not american owners.
given a choice between fsg or mike ashley there`s only one winner and it aint ashley.