The Optimus 4X, as the name implies, is a 1.5GHz Tegra 3 Quad Core powered phone with a 4.7-inch 720p True HD IPS screen and will launch with Android 4.0 Ice Cream Sandwich.
While the Optimus 3D Max/3D Cube is sporting a 1.2 GHz dual-core Processor, 4.3-inch screen, is 9.6 mm thin making it quite a bit thinner than the original Optimus 3D and touts on device video editing.It unfortunately will launch with Gingerbread instead of Ice Cream Sandwich but is slated for an upgrade later this year.
Lastly the LG Vu, is somewhat of a competitor of the Samsung Galaxy Note sporting a very rarely seen 5-inch 4:3 ratio screen. Like the 3D Max/3D Cube it sports a dual-core processor and will launch with Android 2.3 Gingerbread and is slated for an upgrade at some point this year.
Considering how so many carriers picked up the Optimus 2X and how Tegra 3 will take the mobile world by storm, we would not be surprised to both hit Canadian carriers this year. As for the LG Vu, we have no clue whether that phone will come to Canada but we do believe one carrier will take a chance.
Sources: Engadget (1), (2), (3), MobileSyrup, Electronista