Granite in a nice lighter color it will stand up to the exterior no issue . I really like slate but with all the white a bit too dark IMO.

Thanks! Fabricator is saying that marble will be fine with a water barrier...does granite really hold up a lot better? going almost white colors..

I can get marble for $500 cheaper than granite but concerned about wear and tear - thoughts?

We just have poured concrete for the top of our outdoor bar and it works great will all our kids and lots of sun. We’ve had no issues at all.

We did wood looking floor tiles too, cheap and we are happy with the result

I've seen cement countertops and they honestly seem very modern and nice

normally I'd say stone, tile, or concrete. but you said it gets direct sun? it could get hot. maybe look into a water resistant wood such as teak. or add a good shade overhead (esp if people are going to be watching TV).

also consider whether or not it will glare light back up into your face. so if it's some kind of stone or tile, I'd recommend a non-shiny finish.