The wedding dress in Rune Factory 1 is still the best. In my opinion anyways.
I don't really like the wedding dress in RF3. It's okay, but not as good as previous ones. I don't like those red tail-like things hanging from the headdress. And the dark color as well as the white color make the dress look like it's half wedding dress, and half funeral dress.
I've got no complaints about the swimsuits though!