Your reaction to an RA will be an instinctive one, whether ignored or followed. For me to ignore an RA I would have to recognise that following the RA would be in some way unsafe. Aerocat gave a couple of examples where this was essentially the case. I would like to know how the Enter air crew felt that following their RA would be unsafe. It appears that the reality is not that they deemed it unsafe, but rather unnecessary and IMHO, this is not a good enough reason to ignore.
It doesn't help, however, that the most common cause of an RA is essentially 'unnecessary' with ATC minimum separation not comprimised(2 aircraft cleared to climb and descend respectively to levels/altitudes with 1000' separation, both aircraft using high ROC/ROD).