I put NGK 5306s on mine 18 months and 13K ago (yeah, not a lot of miles). She had 86K at the time and they'd never been changed. Still runs strong and gets decent mileage. Lots of other changes, too, so who can say what contributed. Don't know about the Hemis "burning up" plugs, but they don't like platinums for some reason.
I'm considering new wires this summer. Not sure what to use. I know I won't use "shorties". Haven't researched in a while, but I believe MSD 8.2mm is what I'll get.