Sir Piffle, I changed to inna pants :)
Btw, is it good to change Immortal King's Iron and Eternal reign?
Thanks man and happy holiday!!!
Gah, typed out a whole long response to this and the forums ate it. Anyway, let's try this again!
To be honest, I am not terribly familiar with the IK set as I've never really looked into them much. But in general, I'm not a huge fan of using the set pieces of non-dex classes. You're guaranteed a non-ideal roll AND you're paying the premium for the name value. But I took a look at the AH to see how they shaped up.
You get just 1 random roll here so you're either looking at a high vit roll or dex and vit. Ideally, you want the high vit roll as you're getting more total stats from it (dex + vit can only go up to 200 while vit itself can go over 200). Unfortunately, 200+ vit pieces start at 75 mill. Looking at the dex/vit combo, it seems you can get around ~170 total stats for around 10-15 mill.
Searching for 200+ vit, 70+ dex, 3 sockets, and 70+ AR, we see results as cheap as 3 million. Heck, the cheapest one even has a second resist! The armor is a lot lower here though.
You get 2 random rolls here, so you are most likely going to want iAS as your first and then either dex or dex/vit. Dex can roll up to 200 on gloves, but looking for 150+ dex there are only 3 results; the first is 39.5 mill and has 6% AS while the next is 160 mill and has 9% AS. Looking at the 50+ dex/ 50+ vit combo, the cheapest is 12 mill and has 6% AS as well. You are getting a melee reduction roll on these though, and the 2 piece bonus gives us 60 AR as well.
Searching for 140+ dex, 50+ vit, 6+ as, 9+ CC the first pair we find with a resist is just 1 million buyout.
I jotted down the stats for the two cheapest rares I found as well as two of the IK pieces that were a good combo of stats/value. Here are their overall stats:
Melee Reduction: 5%
Price: 24 mill
Cost: 4 mill
*Note: I included half the dex value in the armor assuming you are using StI.
*Note2: I assumed the use of 3 star emeralds in the chest sockets, but both have 3 sockets so this is effectively a wash
So you are getting an extra 550 armor and 5% reduction from the IK set, but you're losing out on 125 dex, 142 vit, and 55 AR, plus you're spending 20 million more (or 6x as much). That's not worth it to me. I also dislike ending up with too many 2x set pieces because you end up removing some of your flexibility in upgrades. What happens if you go the IK route and then end up crafting an awesome pair of gloves? Now you have to replace your chest piece too! Imo, very few set pieces are worth using on their own, especially non-dex ones.
Now, it is possible that if you spent long enough looking in the AH or maybe if you were willing to buy some of the more expensive ones you could find a combo that is better than rares. But at a quick look, it doesn't appear worth it.