When comparing Cinnamon vs MorphOS, the Slant community recommends Cinnamon for most people. In the question“What are the best End-User desktops for Desktop PC's?” Cinnamon is ranked 3rd while MorphOS is ranked 8th. The most important reason people chose Cinnamon is:
Intended for large-screen, non-touch devices that extend traditional concepts with functionality and good looking aesthetic.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Designed for traditional desktops
Intended for large-screen, non-touch devices that extend traditional concepts with functionality and good looking aesthetic.
Pro Fast, elegant and stable interface
Cinnamon uses a traditional desktop userflow that most computer users are familiar with.
Pro The keyboard shortcut design is very friendly to users with windows background
Your win+E, win+D etc are still working after migrated to cinnamon from windows
Pro Lots of downloadable free themes
Plenty of themes, ready and free to be downloaded and applied with just a couple of clicks in a few seconds, with the file sizes mostly around 0.5 - 1MB.
Pro Nice themes and extensions
Very easy to make this desktop your own both in terms of looks and functionality.
Pro Very easy to customize
Is very easy to customize using the built in theme and applet tools, It automatically installs themes and desktop/panel applets for you, so you mostly won't have to go search online for them.
Pro Very well supported
Has a great community and is very well supported through Linux Mint website.
Pro Actively developed with useful new features in each release
E.g vertical panels are now there.
Pro Stable DE
Pro Vertical panel already available
Pro Works well with cairo dock on bottom and cinnamenu on top
Pro Lot of configuration options
Both Gnome and Cinnamon got the same looking configuration panel. There are 40 sub-panels in Linux Mint Cinnamon's, whenever there a far less with Ubuntu Gnome 3's.
Windows, notification, smart corners, windows overlay, connexion windows... you can have those in gnome, but that require compiz and other stuff.
Pro User-friendly
If you have used and loved Amiga, this is like classic Amiga but more stable and fun to use.
Pro Lightweight
Super lightweight, start up takes less than 20 seconds on 10 year old hardware. Works on most PowerPC-hardware by Apple.
Pro Old Amiga software compatibility
I was surprised to see most of my must have Amiga software worked without problems here like AmIrc, ArtEffect and Personal Paint.
Pro Customizable
You can customize the GUI or download already made parts of GUI from MorphOS storage sites like this one here.
Cons
Con Crashes
Despite Cinnamon being on its stable second version it still crashes a lot, ranging from plugins all the way to drivers.
Con Sometimes freezes
It can sometimes freeze which is really annoying.
Con Few themes
Rather than using actual GTK theming, Cinnamon appears to vye for its own strange infrastructure that isn't compatible across any other desktop.
Con Lacks vertical panels
There are no vertical panels in Cinnamon.

Con Conservative management without more creativity
It is almost the same management like in 20-years old GNOME 2 environment. Although some elements are new.
Con Lack of software
Compatible with most modern Amiga software compiled for MorphOS, but does not run modern Windows or MacOS software.
Con Entirely lacks in security
There's no security at all. All programs share the same memory. The system can easily get hacked, even by a less skilled hacker.