To a great extent, I agree. Whatever criteria they use, certainly, unpopularity with movie audiences is not one of them.
Neither here: where last year's "Twilight" will no doubt be one of the highest grossing films of the year.
Nor overseas: "Battleship" may not have been so popular here, but overseas it was popular enough to gross over $200 million, or enough to earn back the cost to make it.
And their selction of the "worst" is made suspect by the lack of "Playback" and/or Christian Slater, the best known star, excluding Daryl "Chill" Mitchell in a cast of basically unknowns.
Of course, it may be that no one on the selecting committee saw "Playback," as it set some sort of record for lowest gross on opening day, earning only $252, that's right $252, on a film that cost $7,500,000.