Two faucets, same basin, different mount. It looks like a style choice but it is not. Where the faucet sits changes the plumbing, the cost, and what happens when something fails later.
Sit on the countertop or sink rim. Water lines come up through the deck inside the vanity.
Installation:
Downsides:
Attach to the wall above the sink. Nothing touches the counter.
Advantages:
Challenges:
A brass body handles constant pressure and temperature changes without cracking. Zinc alloy bodies are cheaper but fail sooner, and a wall mounted faucet with a cracked zinc body means tile removal, not a quick swap under the sink.
The real difference is not about looks. It is about the wall. If the wall is open, pick whatever fits. If it is closed, deck mounted saves money, time, and drywall dust.