When comparing Polybar vs tint2, the Slant community recommends Polybar for most people. In the question“What is the best panel/dock for Linux?” Polybar is ranked 2nd while tint2 is ranked 3rd.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Feature rich
Pro Good design
It has a good example design which makes it really good.
Pro Eye candy themes
Pro Configuring doesn't need to be hard
Many configs can be found on the internet,
Pro Easy to theme and customize
You can easily tweak the panel and make it very good looking by using tint2-settings.
Pro Lightweight
Very lightweight with minimal resource use. Often used with lightweight window managers.
Pro Feature rich
Despite being lightweight, tint2 provides most options available for system panels including launchers, taskbar, system tray, clock.
Pro Panel as well as dock
Depending on configuration, tint2 can be a panel with taskbar, systemtry, menu, battery etc or as a standalone dock for launchers.
Pro Multi-instant support
Many instances of tint2 can be opened concurrently using different config files.
Pro Works as a simple dock for i3wm
Tiling WMs are great but sometimes the mouse is your friend too! Tint2 can easily be configured as a little dock for i3wm.
Cons
Con Configuring can take time
Configuring polybar can be time consuming.
Con Weird to configure
Hiding the Unicode symbols is tricky.
Con No intelligent hide option
Tint2 provides autohide option but there's no way to autohide it when windows are maximized or overlap the panel.