They're both barbarians, if by barbaric you mean "murders civilians".

Iran has murdered a lot of their own people though, let's not be silly.

I wouldn't say the USA is "better", but I'd wager that the US kills less of its own citizens per capita. We generally don't murder thousands of protestors at a time, instead it's a respectable dozen or so.

The reason that they have only hit military bases is that their missiles have a limited range, they'd certainly hit the mainland if their missiles were capable of it. I can't tell if this is a joke or not, but no.

I think that we shouldn't even have a single military base there, but we decided long ago to maintain a presence in the Middle East for various strategic reasons, so we founded Israel and built a bunch of bases and sent weapons to everyone in the region to keep them busy killing each other. We appear to be irreversibly committed, by "we" I mean whomever is in charge of our world-wide ambitions.

(Just kidding, it's JP Morgan)