What was his position on the recently attempted comprehensive immigration reform? I don't see anything in your list about that. And: (1) Does he want to build a fence? (2) Is he in favor of any form of regularization of resident or citizenship status for those here illegally?
He's the only top tier candidate, to date, who has flatly rejected the Z visa -- the vehicle by which McCain was attempting to confer immediate (and indefinite) legal status on illegals.
Governor Romney: "I strongly oppose today's bill going through the Senate. It is the wrong approach. Any legislation that allows illegal immigrants to stay in the country indefinitely, as the new 'Z-Visa' does, is a form of amnesty. That is unfair to the millions of people who have applied to legally immigrate to the U.S."
Governor Romney: "The immigration bill failed because the politicians in Washington are out of touch with the American people. The voice of the people is loud and clear - secure the border, enforce the law and no special deal for permanent residency or citizenship for illegals. America will always welcome legal immigration, but as a nation we also insist on the rule of law." (Governor Romney On Today's Senate Immigration Vote, June 28, 2007)