I would kill for a good toy-line.
When a toy's sculpture is good enough is considered a work of art. Just look at the magnificent Spawn line, even Marvel Legends figures are sculpted excellently.
An animated series would be my next preference, considering this is a visual medium thats drawn, I'd prefer this next. However writers havent shown they know what to do with him more than they did a few years ago.
With a video game, you just play it once and its over, so I wouldnt be too interested in that. With a figure you can adore its beauty every time you see it, and an animated series will provide you with endless amounts of entertainment.
Also a novel would be great as said by Ultrawoman. Novel's are generally written more competently when compared to comics.