ExXB, I may not have understood your post correctly, so I may be barking up the wrong tree here, but there are plenty of unsafe airlines in my book. I certainly have a personal black list of airlines I won't fly with for a variety of reasons. Of course I realise that even the "safer" ones offer no guarantee but let's just say that I try and avoid stacking the odds against me.
As for aircraft types, the A380 developing cracks so early in its career hasn't impressed me too much. I will also be waiting a while before stepping on an B787. I wouldn't think twice about stepping aboard a DC-3 though. Crazy eh?!