What the fuck is up with Atlus changing these hype ass names? Yuu Narukami is nowhere near as catchy and cool as Seto Souji, and you can bet your ass that Akira Kurusu is slick as fuck when compared to Ren Amamiya.
I stopped calling them by their Manga/anime names. I just call them P3/4/5 MC and just be done with it. You are ment to name the character anyway so they are just character avatars.
Far more people will understand me when I say P3MC or P3 Main character than calling him Minato.