Where to even begin?!
I've killed about 7 N. ventricosa, but I have also gotten them to pitcher profusely in high humitiy and low lights, as well as outside in full sun with Sarracenia. I have had a horrible Sarracenia season, no pitcher production whatsoever from various S. leucophylla clones/hybrids and S. minor, which did very well last year sitting in stagnant water for months :P
Darlingtonia - 2 kills, but after a somewhat thought-through cold running water setup I have them alive after 1 year of caring for them, in the fridge Don't know how they'll do next year.
I have not yet succeeded with Drosera linearis, yet oddly my Drosera arcturi whips out leaves like there's no tomorrow.