Certainly the final large sea battle that sealed the ambitions of islam's plan to conquer Europe, not sure about the best. The second battle of Vienna (1683) comes to mind as equally important for the salvation of Europe from the koranimals. But equally important are dozens of other minor and major clashes around the Mediterranean, and Eastern Europe. They all contributed to the ultimate stomping into the ground of the muslims delusional world conquest.
My favorite Book chronicling most, if not all the battles, large and small is Jihad in the West, by Paul Fregosi (1998), a book which, naturally, oil-money muslims attempted to ban from publication.
Some of the "minor campaigns" of resistance are fascinating, bloody and heroic."
My favorite obscure story is the youg Christian heroine, Amalda de Rocas Many versions exist, varying slightly in detail :
"...Amalda de Rocas, a Christian teenage girl who was captured by the Turkish armies that were sent to conquer Cyprus in 1570 for no other reason than that they were not Muslim. During the campaign, the Muslims slaughtered entire towns (after promising them safe passage) and captured about 2,400 children for transport back to the robust sex slave market in Islamic Turkey."
As was customary with every battle large or small, children were not killed by the muslims, but shipped to the Caliphate in Istanbul for sale on the slave market as sex slaves.
The 2400 children were sent in three ships, Amalda, 18, in one with 800 others.
Soon after setting out she managed to get to the powder magazine and lit part of her dress, threw it into magazine and blew everyone into the paradise they deserved. Another historical choice of death before dishonor.
I meant to say that the article at the link tells the story of Lepanto the best.