this again
10 man is normally harder when some important class/debuff is not present
for example, do ultra or Hagara (with the stacked in the center tactic on Frost phase) without a Holy Pala, hey, just almost all of them without a Pala
PS: i always raided both sizes, i really know the differences on 10/25 on some bosses and the difference that makes when a class role is not present
so 25 is normally harder when the bosses makes the raid to spread out (depends of the room if its easiest or not)
in 10 man is when a class/role is missing, in T13 is clearly a Holy Pala, if you dont have a holy pala the fight difficulty raises alot, example of this is Ultra, with a Holy Pala you can solo it making the fight a total joke, can't been done with another type of healer
T13 is all about Healer stress, alot more damage comparing to T12 (yes, Pre-Nerf), 10 man suffers more when in certain boss you dont have a type of healer or tank or even a dps that bring some type of cooldown, especially raid cooldowns, in 25 you have all, in 10 man normally you dont
So it comes to this,
25 have all stuff. the only problem is the tactic, when fine tuned is walk in the park, on 25 i can say the responsibility is more on DPS, they have to really push it (ex: Ultra)
10 fights is only easier with the right boss comp, the responsibility is alot more on Healers (normally you only have 2) making less raid cooldowns, alot more raid damage and if a type a healer is not present is alot harder (in T13 is Holy Pala, in T11 was clearly a Druid, try doing alkir without one in phase 2 on T11 time, was not fun
)
so stop with the epheen, mine is bigger than yours etc crap and know the facts and especially do the class role that is harder on current Tier, 10 = healer, 25 = dps