Mario kart and OoT will definitely push hardware sales. And, like you guys said, the inevitable 3DS exclusive Pokemon game will be huge. They said there wouldn't be a Pokemon Gray, so it'll be interesting to see what they do.

Probably Mario Kart 3DS. Is that supposed to be out by the end of this year?

a 3ds pokemon because its obviously sells more then any other of nintendo's mascot

Pokemon currently have 649 mascots. How are you supposed to compare? LOL.

Mario Kart 3DS for me, I think the huge success of the games on the DS and Wii will help bring over gamers from those platforms in both the Hardcore and the casual gamer camps (Kid Icarus and OoT will not bring over the causals, and Animal Crossing will not bring over the hardcore), for Super Mario 3DS, it will simply sell less imo but it is still a bridge title like Mario Kart 3DS

no 648 characters and 1 maskot pikachu and maybe ash ketchum

How about Metal Gear 3D

To tell you the truth, as long as it has the word Mario in it, it'll probably sell well.

Mario Kart. Everyone loves some mario kart. 

I don't think those games will boost 3DS. Casual people don't buy 3DS because the price is high and because the don't  feel the need to upgrade :

1/ they don't see video game as an important leisure (so if their kiddies have already a DS so be it)

2/ adults are progressively switching to Iphone gaming

Therefore, I reckon the biggest chance for 3DS is to appeal to the core gamer part of the initial DS audience. Professor Layton vs Ace Attorney, Tales of the Abyss, Resident Evil, Kingdom Hearts, Dead or Alive are the kind of games that could make 3DS rise imo.