There's only a few things, but the main ones are good food and healthcare. While my country isn't overall that great, there can be found some of the best doctors. Also, maybe that there aren't really any dangerous animals.
I like the Constitution, and how limited it is. Also how easy it is to grasp, and how disputes against the Constitution get resolved. The 14th Amendment is my favorite because it's interesting to see how the Supreme Court relates issues to an amendment that had nothing to do with the issue in the first place.
There is a lot of equality and equity. Issues like racism is more a social thing, and dependent on the individuals and not necessarily the system. We were the first country that allowed women to vote, we've had same-sex marriage since 2013, however had people trying to pass bills since the mid 80s. I also think either this year or last year, a bill was passed to actually allow people who were convicted of homosexual offences to have their convictions wiped, which is great.
I just really like the people here too. It's very multicultural, and people are generally really friendly.