Raphaël has been one of my SoulCalibur mains ever since his first appearance, and he had his fair share of cool costumes.

His first will always be his 2P musketeer outfit from SC II. It's just perfect, like it came out from a swashbuckler from the Golden Age of Hollywood or one of Jean Marais' "cape et d'épée" movies from the 50's.
His second is his SC VI one. It's fucking great, just remember to get rid of the glasses.
His third ex-aequo will be his 1P from SC III and SC IV, because I just can't choose. I dig the vampire lord aesthetic, he really looks like he came straight out of Castlevania. Just adjust the colors to have him wear black (because who thought it was a good idea to have him wear brown pants and a green jacket in SC III?) and you're good.
I'm torn on his SC V 1P. Him looking like D is really cool, but there again, the choice of colors leaves me speechless. Perhaps a shade of dark brown to go full Hugh Jackman's Van Helsing would have been better...