Fisher Price's Imaginext collection was one of the very first action figures my son got into. Remiscent of the Adventure People from when I was a kid, the Imaginext are well made figures, accessories and playsets.
About a year ago, they released some Batman based Imaginext. My son got Batman and the batmobile for his last birthday. Unfortunately the rest of the collection is extremely hard to find around here but Toys R Us finally received some new ones.
I got my son the Joke and Penguin Villain van. Both figures are well sculpted. The van fires a missile and the front and backdoor actually opens. Its very cool plus it was 30% off that day!