Will Win - 12 Years a Slave
Could Win - Gravity, American Hustle, Philomena
Should Win - Gravity
Commentary - Unlike at the Oscars, BAFTA has three major prizes that represent the top awards presented. In terms of the Oscar race, a win in two or more of the categories would really be a big boost. Instead, I think they will split up the top three races, only confirming that we have no idea who will win the Oscar in two weeks. 12 Years is apparently beloved in the UK, and if it wins as many acting awards as it is expected too, I think it can pull off Best Picture. I don't think that a Best Picture win here suddenly shifts the race in its favor. I think it helps, but it is expected. It is the unexpected here that can change the race.
Will Win/Should Win - Alfonso Cuaron "Gravity"
Could Win - Steve McQueen "12 Years a Slave" or David O. Russell "American Hustle"
Commentary - BAFTA has split before, even David Fincher manage to win over homegrown talent Tom Hooper. No matter what happens, expect Cuaron to win here, and the Oscar.
Best British Film
Will Win - Philomena
Could Win/Should Win - Gravity
Commentary - If Gravity wins here, this is a big boost, but I think that if they are going for the other two major films in Picture and Director, then they will go for the truly British film of the bunch Philomena. It is a popular film, and clearly has widespread support. It doesn't go empty handed, and this is the place to reward it.