Heym by a landslide. It's a matter of taste but I don't like 12's in a combination gun. The Heym will be a 16 built on a 16 bore receiver and handle a lot sweeter than any of the 12's....and none of those names up there will compare to a Heym in quality of craftsmanship. 2nd would be the CZ. After that, toss a coin or let the rifle cartridge make your choice for you.