Anyone who uses the views function will appreciate Adminer better. You can click on a view and edit to change the view. In phpMyAdmin, you can edit a view, but it's not easy or intuitive. SQL Buddy doesn't have any way of doing this.
The installation process itself is very simple, you need to have PHP and MySQL installed on your server, extract the files to a specified directory and run the install script. If you get stuck somewhere there's a lot of help online. The official wiki is very good too as far as the installation goes.
phpMyAdmin can run in a web browser, this makes it a very portable tool because it can be run on any computer and on any OS as long as it has a web browser installed.
SQL Buddy can run inside the web browser and requires no installation whatsoever. Just extract the folder to the server and login using the database username and password.