I think ham will be about as useful as iceman. A good 1 cost to throw in any disruptive deck. I was also debating on ham vs spidey 2900 but I think I'll get ham since I don't play move decks very often. Right now I'm a few hundred tokens short so I have a few days to see ham in action before i decide.
Also I would assume ham would just keep targeting the pig in your opponents hand if you use it multiple times since the pig is likely to remain the highest cost card. Maybe I'm wrong but I'm not sure that using ham in bounce or with moon girl is as good as you're suggesting.