I'll give it a try, and will probably be corrected or added-to soon enough.
I personally like the Zakarum shield most, since it at least delivers
very constant and consistant Smite damage. This is nice in UT when you
are depending on the life leeched back via Life Tap, when taking large
chunks of damage. This way you know how much you leech back with each
Smite, vs the variable damage with the other Elite shields. If you get
two low-damage Smites with one of those, you might not leech enough
back.
Of course, this also depends on your other gear; if you already have a
Grief Phase Blade, the average Smite damage is already pretty high.
It ccan be made in any weapon, so that includes Scepters. It's not often
used as a melee weapon, so a Crystal Sword or Flail.
That's about it. If you have Zods and Vexes coming out of your nose,
what you make in is somewhat irrelevant.
Hope the above helps.
Regards,
Patrick.