Like Eagle said, Edguy are magnificent live, and far exceeded my expectations. I'd love to see Voice. Angra I don't know. I haven't heard any of the stuff with the new vocalist.
pretty damn good list there. Edguy would get the crowd going for sure. I'd love to see Morifade and seeing Angra again wouldn't do any harm - its about time those bastards played over here.
Have to admit ignorance of the others, though I've heard a couple of tunes from Voice, I think.
Masterplan too would be good - Jorn Lande rules.
However, can I put a sugestion in for Ever 'Fuckin' grey http://www.evergrey.net/
That's a band who would tear it up on stage and then party like crazy with the fans for the rest of the Festival. They only have to travel from Gothenburg and Ryanair has some very cheap flights