Empress, Spirit Kings, and Garalon. That's just three bosses. What about the rest of them? You should really give them a go on 25-man. And my reliable sources also indicate that heroic modes are quite horrid with these bosses in comparison as well.
Those 3 including Gara'jal HC I'd say these were all fights that 25man HC raiders soared through quickly. Bear in mind, I'm not talking about normal mode mainly because it doesn't matter because both formats are easy.
Let's turn the table and tell me which fights are more difficult on 25man and tell me what of each fight makes it difficult please...
Ignoring boss mechanics for your sake, 25mans have better logistics in that they offer more loot, more tier which leads to a stronger geared raid that is more DPS and HPS so they're already at an advantage in defeating encounters. I'm sure you're aware that acquiring more gear each reset nerfs encounters, something which 10man raiders are not able to access unless you get lucky.
You also have 3 battle-rezzes that's quite game breaking so regardless of what you say I can see when 25s are hard and when 10s are hard but you cannot state that one format is harder than the other over all because they're just that DIFFERENT.
25mans have that prestige from WOTLK and previous expansions that's why many players automatically assume that they're the go-to method of raiding and the only true format for serious raids. Call it nostalgia and false pretenses if you like.
I personally don't see anything wrong with frowning upon people who see it necessary to whine about the greater effort requirement. I am personally sick of how damn lazy this player base has become.
Whining is a part of giving feedback and last I checked this forum was for discussion of WoW related issues regardless of what exactly it may be. If you cannot stand to see another daily related topic, simply don't read it. I cannot say this enough to people who moan about topics like this one - it's strikes me as odd to grace a thread only to moan about it's content...
What's the point of earning valor from LFR, HCs and normal/heroic raids if you have ZERO things to spend it on, it's like mental torture. You have the currency to purchase items yet you can't because of poor game design.
Variety is the spice of life, it's not fair that everyone is subjected to one game design with little alternatives, poor design if you ask me. You cannot cater to everyone but surely catering to a vast amount of your player base that don't enjoy dailies seems logical, to me at least.