People can enter horses in whatever they want, even if they don't have the top skills for it, so a horse might have high skills that aren't the required skills for their discipline. I just bought a horse that was assigned... I don't remember what but they had the stats for Flat Racing so I switched it. So thats why you could see some horses in the same discipline have different high stats 

Yes, but i want to know what the best horse breed for dressage is.

So an irish cob dressage horse is not better than a hanoverian dressage horse?

Im asking because the stats of an irish cob horse are as wiki says: Power, Intelligence, Flexibility.

And the stats of a hanoverian: Speed, Intelligence, Agility - best for cutting.

So do the stats like in wiki told not count?

I mean for example more training success, better handing down stats on foals or whatever...

If i wanted to breed a horse with the perfect skills for dressage, what should i pick?

Thats what i mean.

Breed has not impact on the results a horse gets in a dicipline. If you have the performance stats in the correct place you can win a dressage competition with a shetland pony or a draft horse or or or. 
Breed the breed you like and breed them for the dicipline you want to do by adding them to that dicipline and train them in it. 

Ok, thanks!