See, the problem is that you simply do not know what you're talking about. I'll try to give a few examples to explain where I'm coming from.
Judgement of righteousness with 1 melee swing and consecration solve that issue within 1 second (like taunt).
Let me paint you a picture:
I will have SoCr on for the conc, let's say I'll get two good swings in at the start and three conc ticks. And the boss hits me once for ret aura damage.
200 damage swings, a generous over 100 per tick conc and some 22 damage from ret aura. With RF on that's like 400+600+50 = 1050 threat.
Now a second after when I pulled the boss a warlock starts casting his shadow bolt. The shadow bolt crits and he doesn't even start to cast the second one. The shadow bolt will generate 3000 threat to the warlock. Which is more than 130% of my threat and he will get agro.
Now I would need to build over 110% of the warlocks threat to get the agro back even if I stayed in melee range of the mob.
Now a Judgement of Righteousness hits for a whopping 250, almost 500 threat. It will not do anything close to enough to help in a situation where someone actually steals aggro from you if the monsters chase away from conc.
Not only is the problem that JoR hits for absolutely nothing and that you have to change the seal to cast it in the first place, mobs will easily wander out of your conc. And if you happen to cast conc in a bad position, you can't cast it again for 8 seconds while the mobs go ham on your warlock or healer or whoever.
The problem that I said that paladins have isn't that you can't build pretty good steady threat it is that you don't have taunt to react to loose mobs. Especially since conc, your main source of threat, is a stationary aoe with a cooldown.
Mana is not an issue at all even with Max Rank Consecration. It depend on the Player Management.
I will not talk about chugging potions, having raid buffs etc.
With tanking gear you will have less than 3k mana, throw in a few T1 and you'll have 3,5k max.
Max rank conc is 565 mana SoCr 160, SoR 200, Judgement 90.
Let's say you'll only use SoCr and three casts of conc for a pack, that's 1855 mana. You will drink before the next pack with only that.
Now let's say you're maxing your threat for a boss fight so you won't lose agro.
You'll start with SoCr, cast conc, judge SoCr, cast SoR and judge JoR and do conc on cooldown.
160+565+90+200 = 1050, or a third of your mana pool as I earlier suggested. After that it'll be 290 mana for JoR every 10 seconds and 565 mana for conc every 8 seconds. You will be oom at half-minute mark.
I have already mention : Seal/Judge of Wisdom = Infinite Mana and Extreme Regeneration.
JoW will have to proc five times to even regain its mana cost and only after that will it be gaining mana for you instead of losing it. It also give so little mana that I would advise against using it anyways. Maybe on very long fights like bosses with low dps group where you don't need the extra threat from JoCr and you would run completely oom even with rank 1.
SoW will generate you mana on the third proc and onwards and is a little bit better than its judgement but I would still advise against it given that SoCr is insane. If you are moving slowly enough that you do enough threat with rank 1 conc I would suggest going with SoCr and rank 1 conc instead of SoW while judging nothing to save mana on costs instead.
I didn't bother to actually calculate the threat per mana of the options but since SoW and JoW should be about 15ppm that would amount to about 73 and 112 mp/5.
I didn't got your goal about this.
I thought to share my experiences of actually aoe tanking stuff - which as I explained is something that a paladin excels at. I was questioned about my opinion that paladins have troubles in tanking general content compared to warriors and druids so I tried to explain it to you. I guess I wasn't thorough enough.
we can Tank all Bosses that Exist in Game.
In theory, yes. But in practice it's much harder and slower and with much less margin for error (less tools).
For example: I have pretty good gear, even some epics now, but I would not try to tank King Gordok.
The Topic is not what is doable or not , the Topic is AoE Tanking which shows that we skyrock on it.
I never disagreed with this. In fact I even ended my last post on this very remark. The part of the post that you failed to quote me on.
Videos of you tanking SM while leveling also do not challenge any of my points. I think you are right about the Improved SoR though.