Various distro spin makers have made two unwritten laws that I very much disagree with:
A) A distro spin of desktop blah should have only programs built with the same widget library that desktop blah uses
B) A distro spin should only ship / pre-install one program for each application category
I mention this because I'm a big KDE fan but KDE-only distro spins do not include my preferred browser (Firefox) nor my preferred office suite (LibreOffice, not that I use an office suite much) because they aren't QT-native applications. While LibreOffice does a better job of integrating with KDE than Firefox does, both drag with them quite a bit of GTK baggage... which is considered "bloat" by many spin makers.
Ok, so a spin doesn't have to fit on a CD anymore because everyone has a DVD reader, right? So why not take advantage of that and not be afraid to ship a 1.4 or a 2 GB live image?
Korora is a really nice Fedora remix and they have a KDE spin... and they break rule A by including Firefox and LibreOffice but they aren't fond of breaking rule B. And they aren't afraid of having a larger image size either.
I guess I'll have to remain happy by continuing to create my own remix with most desktops included as well as many, and often redundant, desktop applications that use a variety of widget sets.