I'm getting estimates on replacing my large deck, one of the contractors is asking if I prefer 2x6 or 2x8 cedar deck boards. I had been thinking 2x6 but a big advantage for my situation of 2x8 deck boards is less gaps -- the reason this is important is I have Fir trees near the deck which are constantly clogging the gaps between boards due to them dropping needles and Fir flowers which get stuck in the gaps, so 2x8 means less flossing.

So I'm curious pros and cons of 2x6 vs. 2x8 cedar deck boards.