Which one of this have you seen that convert better? Until now I've used only 120X600 skyscraper but I'm thinking to use 160X for a website at which I'm currently working.
The sizes are just made so u can integrate and use the best space fully i dont think makes much of a diffrence
in my opinion 160 x 600 convert's better. Cover more space with ads the user will be more tempted to click.
Well the bigger the width the better the ads i seen in this case but its not like the other size doesnt do well
I think image ads reduce the ctr. In my experience if you have image ads activated then in your ad block you have one opportunity to be clicked. If you have text ads then you have about 4 or 5 opportunities to be clicked. Image ads means reduced ctr%