Sega's fooball wasn't as good as EA's but the hockey and b-ball was way better than what EA had out at the time,so I dissagree about the whole EA angle.
Genisis yes,Master System no.It wasn't even a competition between the NES and Sega Master System.I only knew of like three people who had that thing back in the day.
you can disagree if you want , but just think of what happen to the original xbox the first year ... They had EA sports but it wasnt online and just that fact hurt the xbox in sales untill they eventually managed to please EA and get online for all ea sports titles . So if EA doesn't have an impact on a console selling or not then I guess I must have been asleep the last few years And another thing , even if EA sports games arent always the best , they always sell the most and that's a fact .