Mega Brands (more specifically, their Mega Bloks line) is becoming more character and figure based, with the building relegated to ancillary vehicles and buildings. It's a plan that seems to be working as MEGA had a ton of stuff on display.
American Builders is their "normal" line featuring licensed vehicles from the likes of John Deere and the NYPD.
Call of Duty
The scope of the Call of Duty line is mind-boggling. They are now doing named-characters incredibly detailed figures and vehicles.
Those of you who speak and play Halo will know a lot more about what's cool here than I. But what drew my attention is the remote control mech. While it doesn't walk, it does move side to side and shoot projectiles with lights.
And then there's this giant Scarab - made in conjunction with a fan builder, this will be a limited edition store exclusive.
Power Rangers has scaled down from their big megazord sets to these smaller, more affordable sets. Mega will also be releasing a variety of mini figures from across the history of Power Rangers, although not the assortment that Bandai will be doing. There will be limited store exclusive and chase version minifigs.
It's Real Steel meets Bionicle. These articulated fighting robots have arms you control and ratcheted heads. Three hits to the head and it pops off, just like the old Rockem' Sockem' robots.
Mega now has the Spongebob license, and I've watched enough Spongebob with my kids to realize that this is cool. What they are doing is tying in every set with an actual episode, so each minifigure is an actual character that appeared in the show. Pretty cool actually.