mcskoufis - 11:24 am on Jan 8, 2012 (gmt 0)
For 2012 I will be continuing to use Raven Tools and SEOmoz. Raven gets link data from Majestic so provides good results. The only problem is that you are limited to the number of such queries you can run each month.
OSE is a good tool and generally SEOmoz provide good data that I am also using in presentations, director/management reviews, etc. Their crawling feature has been really helpful with complex websites and can save a great deal of time figuring out canonical problems and other SEO issues.
But apart from the cool features of Raven I don't see much real value in SEOmoz. They are great guys, provide a good service, but if you have a decade or even less experience with SEO I think you know where to find good links and how your on-page optimization should be.
Lately have been reviewing free tools again. I think some are really good at finding who links to your competitors. Maybe not all links but you don't really need to have an identical link profile as your competitors do.