Pick one of the Wilsonart HD Laminates, there is an upcharge for the HD laminates but typically it's around 50% but the countertop is last longer, look better and will hold up to stains and scratches better.
Any countertop shop, lowes or Home Depot can provide a laminate top so shop around before you pay a dealership.
One last thing if your replacing a top pay the extra to have a piece of laminate backer applied to the underside....this will help balance the top and help protect from the high moisture content in an RV.
I hope this helps
Tim & Mary
2014 Cherokee 264L-PB
2013 Ram 2500 6.7 Diesel