I'm going to be driving in from San Diego on Sunday and I thought the best route was probably I5 to Katella and then Disneyland Dr however in looking at the directions on the Disneyland site (and google maps), it looks like it's I5 to Harbor to Ball then Disneyland Dr. This is my first time driving here so I'm not sure if there's a reason why it says to take Harbor instead of Katella? Can anybody fill me in on why or what is the best way to take? I'm looking for the way that will have the least probability of me getting lost, lol. Thanks in advance!