Are any paladins having a hard time tanking in Ulduar?

I've never had much of a problem, and I'm in very decent gear, but when we do 25 man Uld now...bosses are hitting me for over 20,000+...terrifically fast. And even though I have tons of avoidance, my healers are telling me I get hit too hard in comparison to our Warrior and DK tank.

Ive talked to other paladins who say my gear and stats are fine. (The World of Warcraft Armory)

What am I doing wrong?

Ah I see the armory bugs persist.

That avoidance is perfectly fine for Ulduar 25, and counting talents your stamina should be alright too. Really there's nothing you seem to be doing wrong, you even have the divine plea glyph (I love that thing.). The honoured shoulder enchant is fine too, the extra flexibility from the defense allows for more stamina from gems and such too. It will also reduce your reliance on [Repelling Charge].

Again, not much else I can say without a WWS or equivalent. But your gear seems fine for Ulduar25 really. If you want to put the effort in, [Indestructible Potion] will cut down your damage intake for 2 minutes. But honestly I'd say the issue lies with your healers who are trying to deflect blame from them sucking onto your class.

Those two (buffed SS talents + full Divinity) are perhaps what people are missing when they have issues with Pally tanking. The only bad things are no multi-target tanking debuff (the 20% slow is single target, you could Judge tab Judge to get it on two) and no Last Stand.

Adding threat to Cons may mess up Ret Pallies, however putting that ability in an existing talent could work.

I've been saving up some Indestructible Potions for use in Ulduar, and you're right. They're very handy.

As for our librams, [Libram of the Sacred Shield] is 353 BV with 100% uptime as opposed to [Libram of Obstruction]'s 457 with 55% uptime (assuming ideal situation where you judge every 9 seconds), meaning it averages 254 BV. It's essentially 100 BV increase on average.

Depending on your block chance, there is a certain point where Libram of Obstruction is a better choice for AoE tanking. If you're tanking enough mobs that Holy Shield isn't likely to last 5 seconds (meaning the buff falls off when HS runs out of charges), then LoO is a better choice for more uptime and thus more mitigation (because it won't fall off when HS runs out).

Napkin math, assuming a 60% block chance (which is about what I have when I wear my block/bv set which has roughly 30% block chance plus HS's 30%) and a mob swing timer of 2ish seconds:

Each mob has 5 chances to remove a charge of holy shield before the buff is renewed. 3 of these will more than likely do so, so in a worst-case scenario, 3 charges are removed in 6 seconds (because of the 2ish second swing timer). 2 mobs will remove 6 charges in 6 seconds, and a third mob will bump it up to 9 in 6 seconds, which is one more than HS actually has charges. Thus, if you're tanking 3+ with short swing timers (<=2sec) and you're in a block set with somewhere around 60% block chance, you may want to consider Libram of Obstruction for more mitigation when AoEtanking because LotSS won't last as long.

Please PLEASE tell me if I'm wrong or way off base with that math, but I think it's roughly accurate. I don't do much napkin math, though, so someone who is more familiar with it and can do more accurate calculations should probably check it.