An aura is controlled by the player who put it on the battlefield, like any other permanent. It enchanting something that player does not control does not change that fact. So if you destroy the aura, which your opponent controls, he gets the token. If you destroy the land, which you control, you get the token.
URStormRU
GRTitanshift[mana]RG/mana]
Former Rules Advisor
"Everything's better with pirates." - Lodge
(The Gamers: Dorkness Rising)
"Any sufficiently analyzed magic is indistinguishable from science."
(Girl Genius - Fairy Tale Theater Break - Cinderella, end of volume 8)