I'm on team "stay at BC", at least for another year. I've pretty much watched most of his shifts at BC this year and, like others have mentioned, while his point totals are high and he's shown the requisite skill at this level, besides the physical maturity, there are still plenty of things he has to work on. It's not like his line is dominating shifts. There are plenty of times they are hemmed in at their own end of the ice. Also, this year, the team revolves more around Gauthier and his line more so than the USNTDP line. Next year it would be "his" team (and Smith's if he stays. I think Leonard is gone). Build up more leadership qualities, defensive responsibilities, as well as possibly playing in all situations (currently, he doesn't PK). It would also be beneficial for him to play on another line, if only for him to adapt to other's playing styles, etc.
Big test coming up for Gabe (and BC as a whole) with the next two games coming against BU this weekend and then BU again on 2/5 in the semi's of the Beanpot. 1 and 2 in the rankings with exactly the same record. If you have ESPN+, they are going to be great games to watch.