Are there a positive attitude among the Poles towards the Danes, Denmark and Scandinavia in general?
Bring some vodka and you'll be fine :) Don't bother about any nationalistic fellows, they are everywhere in the world. But in general, we Poles, have nothing against Danes. And to be honest, most of people are not quite familiar with this country. They only know that it's Scandinavia and has cross on the flag.
Ah, sorry, and some football fans will recognize Peter Schmeichel and Daniel Agger. ;)