I agree with MarioWithLasers. As to your solution, while doing graphs would definitely allow for a more complete display of common stats individually, I think it would be worse overall since there's likely no way to show more possibilities without complitcating it too much (for instance, how often does Landorus-T run 88 neutral speed? How about 168 positive?). While it would surely be nice to have alongside the spreads as listed now, I don't think it would be good as a substitution. As to drawing the line, that can be adressed later, as points can be made for both sides in some cases (he naive x hasty thing, for example, has a significant impact on damage calcs); I don't think anyone would disagree with combining two spreads that only differ in 4 Def x 4 SpDef EVs.