Depends if you're doing the same one as me or not, but I would say it was easier. Different people are better at different types of work, normally I'm an exams kinda guy, but I loved this coursework.
If you're doing history for A2, I'll assume it's because you really enjoy it, and find it interesting. And considering this you should be the same, as you can just do it on ANY topic you choose. Therefore I'd really recommend, like I did, to do it on a subject you know a lot about and find really interesting. I did this and my Teacher said I got nearly full marks on my first draft, with just one or two things I need to verify.
Also, you can change your question whenever you like, so I'd also suggest giving yourself a general brief to write to, and then writing the quesion so that your essay answers that question specifically. Otherwise you could loose marks for not completely answering the question.