I prefer both members of the couple to be genderswapped for various reasons (I love playing around with gender dynamics)
It weirds me out when they only gender swap one person

I think it's particularly odd when people only swap one member of a same-gender couple
I don't think it makes someone homophobic or anything, but when they create a bunch of fan content and most of it includes a lot of pairings having the guy-guy couple become a guy-girl couple, I can't help but wonder if they have problems with it or something...