Twelve year old's opinion is invalid. People have the Classics, so you would still be a trendwhore. Full Tilt in general is a trend, or a phase. What does it matter which model boot he decides on? If they fit his foot and are comfortable, either would be suitable.
I personally would say the Classic, being it's $200 cheaper, and I think the colors look bomb this year. I hate the TWall earth tones and Timberland shit. I think they suck this year.