Linux

I don't have one specific as my favorite anymore and currently use Konsole from KDE. If you like tinkering with files and want it highly customizable through configuration files instead a gui, then probably Kitty is the best (and the closest to being my favorite). Alacritty is also a good one, but its quite simple and lacks some features in my opinion. I didn't try too many, but these 3 are the top three I would consider using in the ~~feature~~ future.

I like terminology

It’s quick, gpu accelerated, can natively display images, and I’m not sure what else.

I don’t use the rest of enlightenment de but have stuck with terminology for years

kitty terminal + zsh shell, two fast and customizable tools

Alacritty because I like how it handles bitmap fonts and I need bitmap fonts in my life.

guake and conemu

iterm2 is near perfect on macOS, for Linux I usually use Alacritty or Foot

I'm in the Alacrity+Zellij cargo cult

Bengaluru's Kempegowda International Airport's Terminal 2.

I use Hyper because it’s pretty simple to setup the way you want it and carry the config across OSs.

Wezterm. It has all the features one could wish for

Terminology with the Nyan Cat cursor! :3 ^.^

Kitty, cute name and logo

QTerminal, xterm, and of course, the good ol' Linux console when I don't wanna do anything graphical.

I want to say Alacritty+zellij but have not even tried that lol.

Konsole. It just works, has profiles etc. I highly recommend to change it to "launch every window in same process" to avoid multiple windows, create a new desktop entry replacing "konsole" with "konsole --new-tab".

And also learn Desktop actions, its very cool!

I have a profile with different colors that starts in my Distrobox.

[Desktop Entry]
Type=Application
TryExec=konsole
Exec=konsole --new-tab
Icon=utilities-terminal
Categories=System;TerminalEmulator;
Actions=FedoraBox;root;ssh;
X-DocPath=konsole/index.html
X-DBUS-StartupType=Unique
X-KDE-AuthorizeAction=shell_access
X-KDE-Shortcuts=Ctrl+Alt+T
StartupWMClass=konsole
Keywords=terminal;console;script;run;execute;command;command-line;commandline;cli;bash;sh;shell;zsh;cmd;command prompt
Name=Konsole
GenericName=Terminal
Comment=Command line access

[Desktop Action FedoraBox]
Name=Distrobox
Icon=fedora-logo-icon
Exec=konsole --profile Fedora-Box

[Desktop Action root]
Name=root Terminal
Icon=folder-root-symbolic
Exec=konsole -e pkexec $SHELL #or define a shell

[Desktop Action ssh]
Name=ssh to X
Icon=folder-remote-symbolic
Exec=konsole -e ssh user@IP:PORT -i /path/to/key

Plasma will still display "open new window" which will instead open a new tab. Pressing Ctrl+Alt+t will also open a new tab, just as opening from Dolphin etc. Perfection!

Note that Konsole will pull in tons of dependencies, you may want to use XFCEs Terminal if you dont want that. Alacritty has no tabs which I find annoying (I hate windows).

I do a ton of work on my homelab from my iPad with Blink Shell, and if I had to pick a favorite terminal, it would be Blink. I know this kinda falls outside the goal of your question, and with that in mind, after Blink, my favorite is Konsole.

Call me lazy if you like, but I use GNOME terminal. Comes as standard with my distro. Does what I need. Supports fonts that aren't pixel fonts and has various look and feel tweaks accessible by GUI if I really want to get in there. I do that once after every fresh install and it's been a while since then.

Given that I loved a bit of Quake back in the day, you'd think I'd like drop down terminals like ddterm and Guake (which might not work on Wayland?), but weirdly no. I like it in a box I can move around.

I also keep the ancient xterm installed just in case and for when I get nostalgic for the old pixel fonts, but it's not exactly my go-to.