USA to spite the internet's (and social-liberal political culture's, in general) Sweden fixation.
Yes, we love the country that has the most extensive, universalistic and egalitarian welfare system because we are "social-liberals".
I highly doubt that is true today.
I know it's not what it used to be, but what other country would you cite as a contender to that title? Apart from maybe Norway, I can't see any.
Of the three Scandinavian countries with the most ambitious universal welfare states Sweden has cut/trimmed the most. Danish right wingers has a slogan that they want "Swedish taxes and German wages". When it comes to things like unemployment benefits and student aid Denmark actually has the most generous rates and most inclusive systems. Sweden is good on the child related stuff (maternity leave etc.), but so is Norway.
Generally I would rank them:
1. Norway 2. Denmark 3. Sweden on the parameters you set up.