Metallica has probably more catchy choruses and more groovy riffs, but Mustaine wrote many of early Metllicas songs thus helping shape the bands sound....and in terms of musical complexity and staying true to their sound throughout their career (save one album) Megadeth takes the cake. Metallica is bigger with massive hits but i think Megadeth is better with technical skill and production.
Metallica has probably more catchy choruses and more groovy riffs, but Mustaine wrote many of early Metllicas songs thus helping shape the bands sound....and in terms of musical complexity and staying true to their sound throughout their career (save one album) Megadeth takes the cake. Metallica is bigger with massive hits but i think Megadeth is better with technical skill and production.