I'm not a fan of killing off cast for the sake of it, and VOY did away with quite a few interesting and likeable recurring characters (I'll never forgive them for killing off Hogan). Then when they removed a main cast member it was in a really unsatisfying way, without any real resolution (plus Kes' departure forced Seven down my throat, who I never really took to).
There weren't many situations I ever worried about the ship not surviving, as every enemy they faced they defeated--there aren't many occassions they had to just run or hide from a hostile ship.
Commander Austin Harris, First Officer, Deep Space Nine (by FltCpt. Bossco)
8.01 - Darkest Before Dawn
(Chapter 8 added, 12/09/2015)