Which Armorset should I use?

Hello,

I have completed my third set of armor, but I don't know which one I should use.

Maybe you can help me.

I have the Grim Guardsman Set (All parts have:75/105):


I have also the Besiege Set from Kessov(All parts have:88/72):


and I also have the Cyan Dragon Set(All parts have 80/120):





I know I have to use the Besiege Set against Sieges, but it is the procc of Bonus Dmg worth it against others Bosses?

Is Attack > all, or is 88Attack/40Defense worse than 70/120?

I am not shure how it works ^.^

And I also have that cute pixie chest armor, but not shure how strong it is (77/77, chance of BonusDmg).

So, please tell me which one I should use ^.^

where did you take cyan set?) i want it too

öhm, as far as I remember I got it from kickin' some dragons butts

had it after 2 kills ^.^

and I have 2 more weapons of it in my inventory, but I can't use them twice