Comparing Contractor Estimates

[Ursula Lovings]

I was hoping to get some professional opinions and expertise.  I have 2 quotes for renovation work on a house.  One quote has the items listed, shows the price of each item as $0 and then has a final total.  I have no idea what the breakdown of each item is, but the overall cost is reasonable.  The other quote has the items listed but with a breakdown price of each item.  The total is higher for this one.  
Is an estimate with no cost breakdown a red flag? I know cheaper is not always better.  I'm concerned with being hit with a lot of "unexpected" costs as the project starts.

Any advice would be appreciated.