I'm aware where they are from in the movie.
Tom Hardy himself mentions in an interview for the movie that its not a Pittsburg accent he was trained for by his dialect coach as they thought he couldn't handle it in such a short space of time so they went for a "non specific" to the east coast american accent.
What he ended up with is clearly a stereotypical "nu york" accent.
As for the Irish posters comment its not meant to be offensive in any way and I get it in much the same way as Italians and the whole Rocky genre.
The fact that the brothers are Irish americans has probably meant that alot on here have found it easy to embrace the movies strengths whilst overlooking the glaring flaws(Clichéd plot, some ripe dialogue, plot points that go nowhere and a frankly crap finale).
I see this overlooking of the movies flaws among some of my Irish friends(I have about 2 so hardly a representative sample admittedly).
It really isn't anything to write home about, just a very average movie.
I see where you're coming from, and I agree that, by the looks of it, it's a very formulaic and clichéd plot. But, for fear of sounding elitist, I think I can claim to have seen more sports movies than most (though perhaps not on this forum), and "Warrior" hit me like none other have, at least not since Friday Night Lights (the movie). I think it may have, more than anything, to do with the androgenic undertones of the film. There's just something there which I think most males can relate to in a rather unattestable way. Something that, in our modern society, has been suppressed and undermined.
This is not a film that will hit home with (most) females, but the male relationships and their implications in the film seem to strike a certain note within the male psyche that is difficult to explain, but impossible to deny. I can't claim to speak for everyone, of course, and I don't mean to suggest that you're in any way any less of a man than the average person, or in any way deficient in any of the hormones which combined constitute a man, but I would allege that there is a reason why the majority of the people who seem to enjoy the film are males, and that that reason has something to do with the male impulse, if you will.
Now, I may have drunk a bit more than I should have, and some of the stuff I've written in this post may not make any sense whatsoever, but, drunk as I may be, I stand by my opinion, and if you don't like it, you can feck off.