<p>Yeah, Euro is considered one of the harder APs, I think. And an REA review book is fine - I used one skimpier than it (our teacher made us) and I got a 4.</p>
<p>I've taken both, and did equally well on them. For AP Euro, just think of it like a giant story and you'll be fine. For Latin Lit (I took Horace/Catullus), I ended up memorizing all my translations and outlining the oft-occuring themes for each author and highlighting places where they come up, and I was fine. My latin teacher also made us prepare extended responses to sample essay questions (far longer and more in depth what we would have had to do on the exam) which really helped as well. </p>
<p>And I found APUS to be harder than Euro, especially with the DBQs (but then again, I wasn't too fond of American history).</p>