SQL Admin Tools Quick Compare has one intuitive database loading and selection window.
From the start up window you can connect to the database servers, compare them as well as synchronise, save, load, delete or copy to clipboard.
The image below shows a red database, green database and the comparison results of the two databases.
Note - for color blind users, all buttons to the left apply to the database shown on the left while all buttons shown on the right apply to the database shown on the right. Therefore the "save" icon on the right will save to file the script contained in the database to the right.