US 95 is longer but more reliable than trying to go over Hoover dam (US 93). The Hoover dam route is shorter but a little challenging with the switchbacks, etc and if if you get stuck with a security guy having a bad day you can be there a long time. I've been both ways and while 93 has much more scenery it can be a nightmare if you hit it at the wrong time. Sometime it takes 5 minutes to clear the security and sometimes an hour or more, especially if there is a lot of traffic. A real crap shoot.
Dawn and Mark
06 HR Endeavor 40 PET