Franz Joseph I of Austria
If Greater Germany was to prevail, the crown would necessarily have to go to Franz Joseph, who had no desire to cede it in the first place to anyone else. On the other hand, if the idea of a smaller Germany won out, the German crown could of course not possibly go the Emperor of Austria, but would naturally be offered to the head of the largest and most powerful German state outside of Austria—the King of Prussia. The contest between the two ideas, quickly developed into a contest between Austria and Prussia. After Prussia decisively won the Seven Weeks War, this question was solved; Austria lost no territories as long as they remained out of German affairs.
Clemens August of Bavaria
Clemens August, who mostly sided with the Austrian Habsburg-Lorraine side during the War of the Austrian Succession, personally crowned his brother Charles VII emperor at Frankfurt in 1742. After Charles's death in 1745, Clemens August then again leaned toward Austria. Over time, Clemens August changed more frequently the alliances, as of Allied of Austria or France, also under the influence of his frequently changing First Ministers and high donations.