Mega Man Star Force 3: Black Ace vs The Legend of Zelda: Spirit Tracks

Hello friends..
Here is a good news.. I recently purchased a new Nintendo DS and saved a few buck through http://www.dealrocker.com discount information. Now I am looking at buying a new game, but can't decide between Mega Man Star Force 3: Black Ace and The Legend of Zelda: Spirit Tracks. Both games look awesome and interesting. Does anyone play these games? If so, then what's your experience?

Any recommendation?