Final Fantasy IV: What a great game
Easily my favorite of the Final Fantasy series, it has a great story, an epic soundtrack, perfect difficulty (though I wouldn't mind using a "hardcore mode" mod for it), and a superb cast that has survived the test of time. I'd argue that it's the best of the FF series, but I don't want to get into a flaming war, so let's just say it's the best to me.
Sample of said music? This.
https://www.youtube.com/watch?v=CSUgvs0UK50
GODLY.
If you've ever played this gem, you'll know what I mean. If not, go find an SNES emulator, a rom of FFIV (get an English translation of the Japanese version), and play it. You'll thank me later.
As for this topic, what's your favorite moment of FFIV? For me, it's hard to call, but I'd have to say when Rydia returns and saves the party from Golbez. That is an EPIC moment for my favorite green-haired Summoner.
And in terms of relation to League, Riot should really look at making a Dark Knight Champion. (wink wink, nudge nudge)
(Sorry if this spoils anything for you, but the game's over 20 years old now. It shouldn't really be a spoiler at this point.)