Win? Yes. Dominate? I hope not, since I expect the 3DS to decline a bit in 2014.
Bear in mind what 2013 contained for the 3DS. A new cheaper model, the end of the first round of all the big handheld franchises onto the 3DS (Monster Hunter, Pokemon, Animal Crossing, etc.), and a lack of competition fro other handhelds or Nintendo platforms. Super Smash Bros 4 3DS will likely be huge, but it's not going to beat Monster Hunter 4 and Pokemon G6 combined by itself.
Meanwhile, we should be seeing the 8th gen consoles all rising from 2013 to 2014. The PS4 and One are simply because they just came out, but even the Wii U has a more promising 2014 than 2013 seemed to be at this time in 2012.
For the 3DS to not just do the best but DOMINATE 2014, it would require both major new releases along the lines of Super Mario 3D Land 2 and a new Pokemon AND the failure of all other dedicated platforms to live up to their potential.
Love and tolerate.
