Simple question, why would you pick the Leviathan over the CIV? I see a lot of people recommending the Lev for certain set ups and what not, but I hardly see CIV mentioned. I'm nowhere near making either of them, but I have a tempered now, and I'm deciding which upgrade I should go for, so I was wondering if there's any reason to take Lev over CIV. It just seems to me that the CIV is only marginally weaker against non-undeads, while it would pull ahead of the Lev on undeads (which, from what I've heard is the main type found in the citadel.)
Thanks in advance.
This post crops up from time to time. In fact, your wording is so similar to a previous question asked on this that I thought it was deja vu :P
Anyway, if you want a bit more thorough of a response than mine, perhaps one with numbers to back up the point, you should run a search.
The basic point, though, is that the bars lie, being as they seem to display the two swords at roughly the same power.
The leviathan has more base damage than the CIV.
It does indeed do more damage vs. undead than the Levi, but only slightly and at the cost of a weaker output against every other monster.
Not many people find this to be a worthwhile trade, and the Levi is generally selected.
For undead, people generally prefer a weapon with Elemental. The impact of a damage type vulnerability is more than the boost CIV gets.
Divine Avenger is often selected as the weapon of choice for firestorm citadel's array of construct and undead.