Well that's one thing about LEGO games... if you've played one, you generally know whether or not you're going to like another.
Having said that, I've been playing through LEGO Batman 3. A long time ago, I made the mistake of starting a bunch of them at once and it's taken me a while before I was ready to get going on another.
If you like LEGO games, Batman 3 is very good. It references a lot of the modern DC movies and it has a very diverse cast of characters. For the nostalgic, it even features Adam West and has a few really fun levels themed to the old television show. It's a pretty exceptional mix of old and new. Be warned: you WILL want the Season Pass. In addition to the usual completely unnecessary character skins, it does have quite a few story levels to play. As a package, there's a ton of content.
One thing Batman 3 does that I like very much is this: for characters that have multiple suits with unique abilities, it allows you to switch to the correct one with a single button press, when needed. It makes the game flow much more smoothly.
That Trilogy is a nice deal for what amounts to $3.33.