Sorry to double-post, but I should have added that tons of people in the community want to know this as well. See this thread at Muthead:
http://www.muthead.com/forums/madden/mut-discussion/410024-do-styles-work-in-online-h2h
There are TONS of threads like this for each version of Madden and each game that has ultimate team (fifa, nhl, etc).
