They're actually very different

Scandinavia and the World's Nordics and Axis Powers Hetalia's Nordics personality swap, because why not
And where Denmark's left hand is, I leave to your consideration

    Personally I like SATW's designs more, because they're just more appealing And I love SATW's comics because of their satire and specific humour While Hetalia is more about unsophisticated and "schematic" fun, which sometimes makes it boring... I still love the fandom thou'

This is also an entry for 's Fanart Contest Why choose one series if you can do both at same time?

_{Hetalia (c)
Scandinavia and the World (c)}