Stacking archangels
Irelia rushing Guardian Angel was probably the most lulzy thing about that game though.
Ah, I don't pay attention to the order things appear in on the post-game screen. I frequently reorder my items (to get clickables into slot 1/2, placing items that will be sold later or combine into other items in slot 5/6, moving boots for better feng shuei etc). But if she built GA before anything else then it is indeed a lolwat moment.
(GA ES #1! ALWAYS RESPAWN NEVER DIE! HUEHUEHUEHUEHUE!)