I tried checking Drupal and as I beginner I had a hard time navigating and understanding it. I find WP to be challenging but Drupal is even more difficult for me. Some reviews will say that they prefer Drupal over WP and I guess these folks are well versed with CMS
I haven't used both from start to finish. AFAIK, correct me if i'm wrong, WordPress has a large community and therefore i would rather say WordPress has an advantage against Drupal.
The most popular is the wordpress and I think it is also the best. Before I start editing my site I tried the best program to develop. And I ended up choosing the wordpress. I find it easier to use and because it is so popular it is easier to find answers to our questions. So for people with little experience, like me, I would advise the wordpress!