Most of the boss damage is around the same ballpark from 25 LFR to 10 Normal. In some cases, 10m is significantly higher. For example, it takes around 7 stacks of Triple Puncture on Horridon to match 10's initial hit. Horridon's melee damage is also around 30% lower in LFR from 10.
10-man normals in most cases are easier than 25-normals. First exception I found was heroic jin'rokh. --- Formerly known as The_Great_Geno. MapleStory IGN: Leaphetamine, Scania http://www.wowprogress.com/character/us/mal-ganis/Taytaytaytay