My personal favourite terminal on Linux is yakuake (global hotkey for bringing the window to the foreground is really useful).
I used the three of them and always ended using Tilda. Be sure to install 1.2.2 (from the gh repo) so you can even use Solarized colors (the one on the ubuntu was 1.2.1 last time I checked).
Xfce's default terminal emulator also has this hotkey feature now.