I like NewsGator - for one thing, you can rename feeds to suit yourself - so as to give them a personality/significance/title that you're more happy with – rather than that proposed by the author.
For example, you could (say) rename 'Formula One Discussion' to 'Michael Always Wins', 'Microsoft WebBlogs' to 'Whatever He Just Said Over There I'll Paraphrase Here' (or 'Me Too' perhaps), and 'Spoutlet' to 'Pretentious Orifice' – neat eh!
Oh, for NewsGator users, what's the difference between 'Slower, but fewer resources' and 'Faster, but more resources' - submit your answer in terms of 'Threads' ;-)