When comparing Querious 2 vs Adminer, the Slant community recommends Querious 2 for most people. In the question“What are the best MySQL GUI clients for OS X?” Querious 2 is ranked 8th while Adminer is ranked 14th.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Fast, powerful, bugfree, very good user experience
Pro Powerful import fuctionality
Pro It allows working on multiple queries on multiple databases (unlike SequelPro)
Pro No crash and it never gets stuck (unlike MySql Work Bench)
Pro Autosave the most recent queries for an easy reuse
Pro User Experience and Editing capabilities
Pro Lightweight
The installation and Adminer itself only requires a single PHP file. Once it's uploaded you can log in and start using it.
Pro Supports more than MySQL
It supports several database management systems (Postgres, SQLite, Oracle, MS SQL and of course MySQL).
Pro Database views
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.
Pro Themes
Has a great variety of themes which transfers pretty ugly application into a great looking one.
Pro Installation
No need to install, it's available to use out of the box.