Oh man...I loved this game period...and its kinda hard to choose Welp my favorite scene of all was the ending scene of (idk if i should put in spoil box but I will so..just incase ^^' )
Spoiler:
Rosa and Cecil Coronation/Wedding and Edge's feelings about Rydia.

But other than that...another favorite scene has to be when Rydia pops up during the battle with Golbez.When she did,I was like,'HECK YEAH!' hehe