I think every company providing web marketing services should be using Moz. It's a great value, entirely self-service, and easy to learn how to use. For businesses not in the marketing space, if driving traffic from search engines is a goal, Moz is probably a worthwhile investment.
I've used every other major platform available, and a number of unknown startups. Raven has its warts, but I don't think a review of alternatives is worth your time. There is no selection process: set up Raven.
If you have a small site that is easy to optimize within your team and to update often, then BrightEdge isn't the right tool for you. BrightEdge works best for a company with multiple clients and many websites to optimize.
We provide much better services to our clients using Web CEO than using our previous methods.
Their index is too vast to ignore when looking at a complete backlink profile. We find links in Ahfrefs that do not appear in any other link detection tool. For this reason, it's a must for our agency to use for the foreseeable future. Plus, it's very affordable considering the data you get.
Majestic helps us determine the quality of our own back links and the quality of competitors' backlinks so that we can refine our link building strategy to improve our search engine rankings.
Moz's Open Site Explorer is a must-have in the SEO professional's toolbox, while an inexperienced user would likely need training to understand how to use this tool. Many important metrics are available within the free version of Open Site Explorer, and the comments in this review have been based solely on the free version.
It is well suited for those that are really looking to properly optimize their website. Combining WordTracker with tools such as Moz can be very useful and really make a difference in SEO.