just thought i would weigh in, 2014 was me and my daughter's 1st comic-con(her early high school graduation gift, she graduates this year in june). amazingly i got me and my wife, keifer sutherland's autograph(Fox), for my daughter i got her a ticket for the bones(Fox) autograph signing, and a bracelet for my daughter for vampire diaries(WB).
For Kiefer's autograph on Thursday, we got super lucky, got in line at 5am, in which my 11 year old son drew the last ticket for autographs.
Thursday and Friday night my daughter wanted to do all nighters, so it wasn't hard being in front of the line for the autograph drawings.
From my experience the Fox drawing is just random, you just hope you pick the winning ticket(so nerve racking, i just got lucky) especially since the person in front of me who was 1st to draw for the bones signing didnt win. everybody in line were trying to get tickets for teen wolf, that i itself was a crazy experience.
As for the WB drawing, people in line said WB likes to put all the winning tickets on top, so i just picked a ticket from the top and got a winner(or i just got lucky). So when the guy was going to put the wrist band on me, i told the guy in charge it was for my daughter, and he said where is she, and i told him she was in line for the panel. So he told the guy to put it on the loosest settings, which luckily will a little soap and water in the bathroom i was able to get it off.
Also the WB drawing wasn't handed out till 8am or 9am, whatever time all the other signing were, not any earlier.