France, Germany and Italy are all good choices for this. France gives the most options to play with in terms of budget and over seas possessions. Germany is very similar however they lack any bases in the med to begin with. Italy because its heavily based in the med but you do start off with a base in the Indian Ocean which can be used as a staging ground.
Nation France 1900 start Auto Generated legacy Fleet Admiral mode Yes to Support forces No to reduced flash fire risk 5 Year Tenure as Chief of Navy unless removed by; Being forced to resign due to low prestige (save edit to reset prestige for new Chief of Navy) Change of Government due to unrest revolution
If we're still accepting applications, I'll gladly take 1915-1919 and finish the war. (at least, as a point of reference.) or, conversely, I've found myself to be a not-incompetent carrier admiral. If you want to lock me into a slot post-1930 I'll gladly have that instead.