Kind of Important wrote...
Now, I do like their newer stuff, everyone freaks out "It's not as good as 'Puppets' or Ride the Lightning, etc. I'm glad they went the way they did, got off the thrash, and become more melodic.
Lol? What songs on Death Magnetic are more melodic than Master of Puppets, Disposable Heroes, Orion or Damage Inc?
As for the original question, Metallica at their peak were better than the best of Megadeth, but Megadeth has been way more consistent. I don't think I've ever heard a Megadeth song I flat out disliked. Earlier today Fuel came on the Radio and I switch the channel and found another station playing U2... and I didn't change back. If I weren't driving I would have facepalmed at the fact that I was opting to listen to U2 over Metallica.