Marti: No idea what the producers see in her other than insurance against Paula Dean retirement.
Yvan: Nice enough. Needs a qualifier in front of "home style." Saying Home Style means nothing. Seems to have potential but never seems to exceed "above average." (I'd rather have Ippy.)
Michelle: She kept talking New England POV but recently it seems clear she is really talking about NE Seafood. Is there no food in NE other than seafood? If it is all about seafood that is a lot less interesting to me. I can see her doing well, but I wouldn't be interested in the show.
Justin: He is a genius with motivation. I probably would't try anything he makes but find it fascinating to watch. He would be the first food network star (I think) focused on a young demographic.
Of course it doesn't matter what the producers say now, it is up to the viewers. I suspect that those that like Michelle might be "serial voters" and might push her through. Yvan could also have serial voters.
Justin is going to be on the food network regardless of whether he wins this show--he just has too much talent to discard. He is the only one of the 4 that could take on a typical Food Network Road Show and bring some credibility to the hosting job. I can think of a half dozen shows he could host. How about this: Same concept as Diners Drive-ins and Dives but focus only on places teens visit. Or only places that have "rebel" food. Or only places open less than 2 years. The possibilities are endless.