Most of my bikes have fenders... none are porn worthy but they work well.

I just installed a pair of Zefals on my winter / beater bike, have PB fenders on my longbike and Trek hybrid, and the fenders on my fixed mtb tourer are nameless but have held up really well.

I have always liked Zefal plastic fenders and PB fenders have also become a favourite as I have intalled countless sets for customers and never had a complaint.

On the other side... my old Peugeot still has it;s original aluminium fenders, and my Rudge and Phillip's Twenty have their stock painted steel fenders.

I have Bluemels on my '55 Lenton and these are the most fragile fenders I have as they are very very old but even then... they have no issues. The black Bluemels seem the most prone to breakage as the material is less stable.