Orion has made frequent appearances in Wonder Woman and Superman (especially the former) and will probably get a bigger role as the Wonder Woman series introduces New Genesis and the such.
Anyways, I think Orion is a overlooked character and I would love for him to get his own series in the New 52 so they could show Darkseid, Apokolips, New Genesis, and the New Gods.
Here are some scans:
Astro harness racing against Hermes. It is implied that Orion can find anyone as long as he has that person's DNA.
Lifting a huge ship in a fight with Superman.
Orion has guts (slapping Diana's ass)