Copper Tank vs. Plastic Tank

Just me but I prefer a larger core in the stock brass tanks. Of course, I like the old-school look of polished brass tanks.

Me too. Working for a salvage we sold 100 plastic tank radiators to one brass but there was more plastic tank radiators on the road by then too but no where near a 100 to 1. If the brass one isn't rotted out then it can be repaired. If brass is rotted out then it can be re-cored. Plastic broke then it is a trip to Auto Zone or the type store and buy a new one or buy a used one at a salvage. The plastic tanks is why the parts stores started selling them because they never sold stock brass ones. Plastic is great until it fails then you replace it.
Cliff's son is dealing with a cracked tank right now on a Jeep he jut drove to Oklahoma from North Carolina.