^Nintendogs+cats and Onitore: Brain Age 3 are missing on your list!
Very equal list, my highlights are:
DS:
Animal Crossing Wild World: Simply fantastic in my opinion. Unbelievable how this game steals your time with... nothing!
Brain Age: Never played the originals, but the one that came bundled with the DSi XL were great!
Mario and Luigi: Partners in Time: This game is fantastic, changing the control from 2 buttons to a whopping 4 was incredible! Wacky story and gameplay elements.
Wario Ware touched: like all wario ware games, this pushes the limit on how retarded a man can be... I love it!
3DS:
Steel Diver: Just Kidding
Mario 3D Land: I safely say this game is revolutionary. Level design + 3D usage... one of the best marios ever, and that's saying a lot!
Kid Icarus Uprising: I have no words for this one, great "new" addition to the Nintendo portfolio
Zelda OoT: Usually a remake wouldn't make this list, but... a remake of the greatest ever? No way can it be out.
With the games I haven't played, but I'm sure will be great, like Paper Mario, Animal Crossing, NSMB2 and Luigi's Mansion (never played the original :O ), 3DS edges this list.
But it had more time too.
