This was a tough one to call, I can't remember which one I heard first. I think I'm going to have to plump for Maiden. Metallica has the best album in Master Of Puppets (though I think the weakness of the vocals lets it down) but Maiden have made more consistantly good albums.
That which can be asserted without evidence, can be dismissed without evidence. - Christopher Hitchens
Cantankerous and Grumpy