.....Needless to say, Silkair all the way.....
It depends...
From the material side SLK is better, only the benefits, not the salary. If you are single and think you don't need LOL, children, aso, you earn more in TGW.
From the career point of view there are also slight different implications: If you have lots of hours and ready for upgrading, TGW is much better. If you want to join SIA maybe SLK is better, but they also don't take you the next day.
And from the human side: If you are Western and like to minimize the cultur shock: Choose TGW by all means!
Yes, SLK is hiring DECs.
Dani