When comparing Conky vs Stacer, the Slant community recommends Conky for most people. In the question“What are the best system monitors for UNIX-like systems?” Conky is ranked 3rd while Stacer is ranked 4th. The most important reason people chose Conky is:
Conky is editable to the point that there is almost no limit to the designs one can use to display the type of information one wants. Not only are there thousands of themes available on sites like deviantart and gnome-look, but a user can create any type of look they like with a little bit of know-how and imagination.
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Pros
Pro Infinitely themeable
Conky is editable to the point that there is almost no limit to the designs one can use to display the type of information one wants. Not only are there thousands of themes available on sites like deviantart and gnome-look, but a user can create any type of look they like with a little bit of know-how and imagination.
Pro Many different sensor stats
Conky has a bunch of sensor stats that the user can choose to display such as CPU usage, memory, uptime, etc. Depending on what the user wants to display, most likely there is a way to display the needed info when using Conky.
Pro Runs on top of X
Pro Fast and lightweight
While older versions of Stacer were built with Electron, it's now been ported to C++ and Qt, which makes it fast and light on resources.
Pro Good GUI
User-friendly interface.
Pro Feature rich
Stacer also lets you clean junk from your system, enable/disable startup of background services at boot time, etc.
Cons
Con Setup can be difficult
Being text based, the config file for Conky can be intimidating for those unfamiliar. Though there are configuration managers out there such as Conky Manager which can make the setup a bit easier.
Con Is system monitor but can't manage processes
Conky is a great system monitor, but can't e.g. kill (individual) processes like htop can.
Con Requires X
Cannot easily be used on a headless server or remotely (most people and servers support remoting via SSH).
