I recently came across an old thread about the "worst lens you ever owned" and it got me thinking. Has the advent of AF-S, VR and nanocoatings changed the photo landscape for ever or are the originals still the best? So, what has been your most cost-effective lens and which has been your least? This would cover both Nikkor and third party (including used, although fire-sale or lenses acquired from unsuspecting sellers on eb@y might distort the picture somewhat). To start things off (although my total sample is small): Best: Nikkor 28-105 AF-D IF - bought originally with my F80 when I switched from Canon manual focus (FD) exactly seven years ago. It is, as someone once said, "the Swiss Army knife of lenses". Worst: Nikkor 70-300 AF-D ED - again, bought with my F80. I only realised what a dog it truly was when I got my D700 and could do more thorough testing. Now exchanged for the current VR (G) version.