Snarbolax Suit
Pros: Great power
Cons: VERY expensive
Dread Skelly Suit
Pros: Great defense
Cons: no other buffs
Radiant Silvermail
Pros: No semi-useless normal resist, instead piercing, plus undead medium could be very useful. Cheaper than other sets, since it has no 2*
Cons: Doesn't have a helmet, piercing is not that important in t3 (especially since I have Skolver Coat anyway), curse resistance will rarely matter
Divine Mantle
Pros: Elemental+shadow, and good stat resist
Cons: I already have the divine hood, doesn't have anything else special to it, curse resistance will rarely matter, lacks the poison resist of the other sets
Which of these choices should I take? The other choices don't have enough strengths or have too many weaknesses. I'll be getting the Snarbolax suit either way (for costume) but it will be a while before I have enough CE and the ashtail coat, and I'd like to know if I'm better off just waiting for that or getting one of the simpler outfits
Normal is not semi-useless. It's the most useful defence out of all of them.
I don't say this out of some kind of hipster pride. Normal defence acts against something like half the attacks of the game while each specialised type is split for 1/7th of attacks and full for another 1/7th (roughly).
All melee is at least part normal, so a zombie hit will do more damage to you in radiant silvermail than it would in a dread skelly.