On the subject of longevity....
Fibre based papers have the history that proves their potential longevity, whereas modern, quality RC papers are the subject of projections that assert they will be long lasting.
There are adverse conditions that RC may withstand better than fibre based paper.
In either case, if you properly process and finish and store/present your prints, they will last for a long time.
I print RC almost exclusively. I like the results I obtain. If I had a dedicated darkroom and a reasonable amount of space, I would use both.