I am planning to road trip across America next summer with 3 friends. We have 3 weeks to a month to use up and was looking for any ideas for the best possible route to take.

At the moment New York to LA is the best idea. However we also want to see Vegas but hear there is not much to see on a Southerly road trip.

Also if anyone has any info on prices of cheap hotels and stuff along the way that would be useful

Any ideas will be great- we have a year to plan.