Having a higher wing-loading has it's disadvantages (longer take-off roll, slower climb rate), but doesn't this provide a smoother ride and better ability to penetrate turbulence without over-stressing the airframe? I believe the B747-8 will have significantly higher wing-loading than the A380, so would a better ride and ability to handle turbulence favor the B747-8 in these measures of performance?
"The only source of knowledge is experience." A. Einstein "Science w/o religion is lame. Religion w/o science is blind."