Points league counting Wins, Saves, Shutouts and starts are at a premium. Who you keeping?
Was leaning Demko as he should get the lion share of starts but the injuries and his play early last year are concerning. Doesn't help that Vancouver is a mess.
Gustavsson is not as 'proven' and still has MAF to contended with but seems be in a better situation. Crushed Demko last season in fantasy points per game and played more games as well.
Demko would be my choice. They gave up a ton of PP goals last season but should be much improved on the PK this year. Also, I would expect Demko to play more games than Gustavsson.