I've done CE on normal multiple times. Its mechanics are basic, and the only "difficulty" added there is the fact that it was level 33. I'll grant you the point about Skolas, but I've never seen anyone say it's harder than VoG. Always the other way around.

I've done all of it a shit load of times and skolas is harder. You have half the team size which requires each player to be far more skilled and attentive. It lasts way longer, which leaves a lot more room for error. No one can pick up your slack if you -blam!- up save for doing more or less damage to the boss. Regardless of all that, you should never say you know something when you've never done it. That's like the top notch ignorant statement you can make.