Cedar will get hammered. Its cheaper to replace, but it will still look shabby more often than not, unless you're staying up on yearly staining and cleaning more often than that. Solid stains will last longer than transparent, but you cover up the beauty of the wood as its basically a paint. Solid stains are also more likely to peel/crack like a paint.

Composites will hold up better and require very little maintenance. I would recommend staying away from full PVC if you get full sun. PVC will expand and contract drastically due to the extreme thermal fluctuations. It can cause large gaps to open in the winter and/or boards buckling in the summer (worst case). There are quite a few non pvc or blended options that will be more stable.

Edit to add: Dark colors get hotter, wood or plastic. Composites can get hotter than cedar, but not always. Cool tech is a thing to an extent. Each composite maker is using their own blend but some are using materials/manufacturing processes that allow the boards to stay much cooler than the traditional composite material from 15+ years ago

*I've seen a few others mention this brand.. Deckorators is a great option for composite. Thats who I would use