I was just going to use plywood like I did on my dining table (see pics in my build thread, link is in my signature) but then I came across some prefabricated laminate countertops at the home depot that were on clearance and were a steal. You can see how they ended up in my build thread.
on my previous bus, I used counter top that can be purchased from any big box retail store...Lowe's, Home Depot, etc. Just cut it with a circular saw to the length I needed. I think I bought the finished Formica ends there as well.
Pros; quick and cheap, back splash already built in.
cons: you won't be able to be creative, your counter top will be a rectangle.
Pros: Looks, feels, smells amazing. Goes with our look.
Cons: Maintenance is comparatively high, cost is comparatively mid-high, weight is middle of the road.
I stayed in an airbnb a couple of years ago with butcherblock countertops, and it had "DO NOT GET COUNTER WET" signs everywhere. Are they that much of a pain?
I got a couple of free stainless steel carts off of Craigslist and I'm going to see if I can repurpose them into countertops. I just don't think you can beat stainless for durability and ease of cleaning.