Elite Knight vs Black Iron

I've been using the Elite Knight set and a Black Knight Shield for most of the game. It seems a superior "standard armour" choice to anything else I discovered. Recently I uncovered first the Black Iron set and then Havel's Set.
None of my armour or shields are currently upgraded. I'm playing a melee pyromancer build, wielding a Claymore (and occasionally a Silver Knight Spear). Strength is about 20, Dex about 25 and Endurance about 35. Been wearing Havel's ring since I found it. I can't say as I've noticed a particular speed difference between the sets, but that might just be me being dumb.
At the Anor Londo Blacksmith, and feeling like I should finally upgrade some armour. Which set should I go for, and what shield(s) to go with it for general-purpose wear? Answers I've seen elsewhere seem to be terribly conflicting.
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Is the Elite Knight Set good?
Just as in the previous games, the Elite Knight Set is widely regarded as an overall excellent and well-balanced medium armor set. It boasts impressive physical and elemental defenses, resistances and Poise, despite being in the middle of its class in terms of weight.Is black iron set good?
The Black Iron Set is relatively light-weight compared to other heavy armor sets, and has correspondingly lower damage resistance, excluding Fire resistance and Poise. When fully upgraded however, its physical defenses are second only to the Giant Set and it provides the highest Flame Defense of any armor set.Is black iron armor good ds1?
One of the highest physical defense armor sets in the game, only slightly worse than Giant's, but it weighs slightly less and has (high) Curse resistance. Upgraded and as a set, has the highest fire resistance of any armor set in the game.Is Black Knight armor good?
The Black Knight Set offers overall mediocre physical defenses for its weight. What it does have is decent Poise and very high Flame Defense, which ranks as the highest of any medium set when fully upgraded.Dark Souls Series Model Comparison - Elite Knight
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