Covered Porch decking

Surely been discussed before, but here goes again.

Covered porch open on one long side and one short. Southwest facing. Approx 315 s.f. Will definitely get wet from wind blown rain.

choices would be: composite, treated (and then stained) or cedar 2x. My only experience with comp is on my parent's decks (Trex/ca. 2001) and it is "meh". grey and has always looked mildewy, regardless of cleanings.
My inclination is to go with treated. It's something that I can replace and repaint as needed down the road, even though I hear treated is crap nowadays. cedar has a great feel under foot but prob cost prohibitive.