I usually like to wait in the Everything Else line for SDCC But every year it's difficult because I've had Convention Center parking which doesn't open till 5 am or some nonselse so I have to sit with my car till they let me in. Otherwise I'd arrive earlier.
This year I have Hilton parking though (through Ace, not a hotel guest) - what time does that lot open that I could just park my car and then go to the line? I have parking for Wednesday and Thursday so it doesn't really matter to me either way if my car can be left there.