imo, I think that BasKet wins them over. http://basket.kde.org/ - it is a bit old though and not being developed on heavily right now.
If you like mind mapping software and linking ideas together look at http://wisemapping.com/ this is online. However, if you would like you can download the software from https://wisemapping.atlassian.net and host it locally for note taking. May not work with your image request, but there are other mind mapping softwares that do.