I really don't care for any of the first wave except for Serpentor's Chariot and the Trouble Bubble, myself. I would like to buy them, but they disappear pretty quickly. I don't really hunt that much, and they've only been seen at Target locally, as far as I know. But the Rattler and Conquest are two I'd really like to buy.
I'm curious to see the vehicles from the movie too. I don't think the figures will look that great, based on what little I've seen for this movie so far.