The “Enhanced Definition” filter does not have “no border” variation. It’s borderless.
All photos above are available also at Flickr photostream.
I will not make any arguments about how those filters are compared with other filters available for Instagram. Or, the fact there there are many photo editing applications that offer “photo filter”.
What do you think about the filters? I think they’re great. It’s not easy to decide the best filter because not a filter might not work great with all photos. Just choose the the best filters you like for your photo. And, I think that’s the best from you. :)