I won't bother with guys like Steen or Cabana, they wouldn't be utilized in WWE.
Matt Morgan- would actually get a decent push in WWE
Batista- bring him back against his will. I don't care if he wants to be there or not
Rob Van Dam- get him out of my TNA
Michael Elgin- Young and talented as fuck.. he is too short for WWE's standards, but I could actually see them using him to some extent because he is buff'd out and has a great power move set
Rhino- dude is only 36 and can still work as good as he ever did. Not sure what happened with WWE the first time around, but he seems to fit their mold well