This must be a joke.
No version of Thing has a chance against Superman.
Especially once you consider that Spikey Thing lost once to Mr fixit!!!!!!!
And yet he is placed against one of the more powerful post-crisis versions of Superman out there!
Come on!
Even Superboy would grind up the Thing and give parts of him to Krypto as chew toys.
Oh ...and yeah, I know Thing has 'heart' and all that cr@p, but in the end he just does not cut it.
Spiked or not.