Which game has been , is the biggest technical achievement this gen.

[NJ5]

Million said:
@NJ5 I think Rockstar were faced with challenges the average developer wouldn't have to deal with , such a large and interactive environment wouldn't easily high end in terms of graphics .

In that sense it's a graphical achievment.

I see it differently. A great technical achievement would be to do it right, meaning almost without a hint of framerate issues and pop-in. Obviously it's still an achievement as it stands, but not a great one.