To plan your trip: orbitz.com.
Best for: Hotels.
Winning features: Search by neighborhood or hotel chain. A special viewing option lets you peruse lodging choices on a map, which makes it easy to tell which ones are closest to the sights on your list.
Weak spots: It displays the average rate for the span of your stay rather than the cost of each night. The total cost, with taxes and fees, appears only when you start to book your room.