Ok, I think we may need to start a Cracked.com thread but guess who's number 4 on the list of 7 Classic Star Wars characters who totally dropped the ball?
http://www.cracked.com/article_17546_7-classic-star-wars-characters-who-totally-dropped-ball.html
As they point out, Leia withholds the information when she's tortured by Dr. Ball M.D. and when her home planet is under threat she lies about where the Rebels are. So despite going through all this and correctly guessing that they're being tracked she just figures "F##k it, the Empire's going to find us eventually!."
Luckily for her and the rebellion Number 3 on the list is Tarkin who decides to park the Death Star in orbit of Yavin and wait for the rebel base to come into range.
Star Wars makes a lot more sense when you realise it's populated by a group of idiots.