Lego has done a good job with their software. Of course, Lego hires other companies to make their games (e.g. Star Wars, Batman, MMO). Lego has been pretty cool about people modding their software to high heaven. I'll give you an example.
Lego's original Mindstorms robotics line got pretty popular. When Lego decide to upgrade that line, they let fans fly themselves out to Denmark to decide all the components that should go into the new version! How awesome is that? They listened directly to the customers. Then, they made all the software open source so that people could modify and re-release it as much as they want.
Then, Lego released their "Lego Factory" software where people could build creations on their computer, then order the bricks necessary to build that set in real life. Some users hacked that software in some smart ways,
and you can read about that right here. It's a very interesting story, and a good example of how well Lego treats its users.
The bottom line is that Lego has consistently been producing good software all around. The Lego Star Wars games were huge successes (LSW 2 sold 1.1 Million copies during its first week released!). You can expect that the same fun factor will be carried over to the Lego Batman games that will be made by the same development studio.
So far I have good faith in
the Lego MMOG. The company that's developing the game (NetDevil) is a good studio, and they've done great work with destructive environments apparently (which is awesome for a Lego game). I don't know how much overlap there will be between the Lego MMO and BL, so it's hard to say how much they would need to compete with each other. Either way, I bet the Lego MMO will end up being pretty fun, as long as they don't nerf the social aspect of it. Lego already has forums and stuff on their site, so I think it should be OK.
