Unforgiven, Holier Than Thou, The God That Failed. The album is full of huge sounding, heavy songs, and I think Holier Than Thou and The God That Failed are just awesome examples of that. Unforgiven is also one of the best metal ballads ever, part 2 is just as good, and part 3 is a terrible ending to the whole thing.
Sad But True is good, but I never thought of it much more than that, for me it's a great riff but the song is just overall good.
Not a bad song on the record though.
Yesterday don't mean SHIT.