Best Unique to upgrade.

What is the best unique to upgrade? Are there any norm uniques that would be worth using if they were upgraded to elite?

What do you think??

I think that would be better if it was Ethereal.

Other than that, I don't know what would be best to upgrade...?

Ribcracker, Buriza, eth Hone Sundan, eth skulder, Headstriker(it has over 100% Deadly Strike at high level), Goldstrike Arch, Vipermagi, Duriel's Shell, Shaftstop, Que-Hegan's, Guardian Angel.

Those are all useful upgraded. For the best it would be
Ribcrack, Buriza, eth Hone Sundan, eth skulder.