Jesper uses his Explorer almost religiously now, he used to use a Gibson Voodoo explorer for quite a while.
Bjorn uses ESP Eclipses and Les Pauls. All mahogany.
Alexi uses his ESP Offset signature V. Alder with a maple neck.
Basically, I'd go for EMGs, and a ESP Eclipse or Viper through either a Powerball or a 5150.
That'll get you the Gothenberg tone.