I'm going to throw in a vote for Honjo/Velo-Orange/Berthoud, not because they are metal, but because they are all significantly longer than SKS and PB. In my experience, the coverage for most of the chromoplastic fenders is about 180° for the rear fender and about 90° for the front. This is not long enough to be truly effective, and the problems are primarily with the front fender, unless you ride with others, when the length of the rear fender is also an issue.

If the front fender stops at the top of the tire, any water that "sticks" to the tire will throw in front of you, and slightly up. Then you ride into the spray and your feet get soaked, along with getting grime on the bike. When you have a front fender long enough to go past top dead center, the excess spray goes down and forwards instead of up and forwards.