You can use Surfer SEO for some pretty cool things. You can write a piece of content, see how your content score relates to your competitors and check out the Domain Ranking and see what you might need to do in order to out rank them. There are lots of other "cool" features that I am still learning.
This was the article "What is Paintless Dent Repair" I created using Surfer SEO and was comparing to other pages and rankings.