Check out Joe’s link below. Here are the nuggets of wisdom I would highlight. I have twisted them, of course, to my own purposes.
To Huck: Now’s the time to expand your appeal. Play the conservative populist card. Combine steadfast social conservatism with alternatives to mere trickle-down economics. Address the insecurities of the middle-class with relatively market-based remedies in areas such as health-care. Moderately compassionate class-based appeals, studies show, work even among Republicans right now. Campaign against the New York conservative elitist establishment, as your brainy advisor Joe Carter is doing on his Evangelical Outpost. Stifle the puritanical and prohibitionist impulses of thin and fit Huck and remember what’s attractive about the inner hefty Huck.
To Romney: You’re actually doing pretty well, all things considered. The real problem is not that you’re a Mormon. Nobody really likes you that much. That’s pretty unfair, I think, but you need to work on being personable and displaying dignified character. Responsible Republicans are bound to continue to flock to you as the "ecumenical" socially conservative alternative to Huck. The odds are you’ll lose in Iowa, but the immensity of the Huck surge makes that no longer anything near fatal for you. Lay off Huck; his success has actually helped you, and you can use it to capture the center. It’s actually a big advantage to have the New York conservative mainstream establishment for you; it’s full of smart and influential people.
To McCain: Romney is going to peel off the "responsible Republicans" from Giuliani. But that’s your opportunity to get Rudy’s "national security" Republicans and do well enough in NH to be in the final three with Huck and Romney. Voters weary of the Mormon-Evangelical in-fighting might turn to you as an authentic man of character at least acceptable to social conservatives. Don’t say anything self-righteous that unnecessarily alienates religious conservatives for at least the next month. And look as young as you can.