E-trac, 3030, f-75ltd, cz's, explorer's, AT's, the list can be long. You can't easily pin one down unless you try one, or several, in your neck of the woods. Seems like you know what you like, and don't like, in a unit, maybe start from there.
I use a 1021 cz3d for field work with little to no trash, for old coins, and the older f-75 for around high nail/iron spots. 98% of the time I'm after the old coins....if a ring or other jewelry turns up, it's usually antique, and that's a big plus.
There is a fellow you may of heard of him on the forums, named Keith Southern, says the Minelab 3030 is the best all around unit out there, and I believe him,...good and honest man, I think he's in Georgia.