SFAM is much more representative of DT than IaW is. That's not to say that IaW isn't amazing of course (it's my 2nd favourite, and I rank it slightly above SFAM), but it doesn't have the diversity that SFAM has that much better demonstrates all aspects of their sound.
Hmmm... what if you look at it this way...
Pull Me Under vs. Overture 1928 / Strange Déjà Vu
Another Day vs. Through Her Eyes
Take The Time vs. Beyond This Life
Surrounded vs. Through My Words / Fatal Tragedy
Metropolis vs. Home
Under A Glass Moon vs. The Dance Of Eternity / One Last Time
Wait For Sleep vs. The Spirit Carries On
Learning To Live vs. Finally Free
Some of the match-ups aren't very close, but a lot of them are.... oddly enough, those match-ups are pretty even, IMO... both albums are pretty good, and do share a good range of the band's sounds, but only of that period. IAW is THE sound that DT had from the early-to-mid 90's... but SFAM is THE sound that DT has been exploring since Jordan joined the band... a sound that they were moving from and improving as they grew. Granted, SFAM has some great songs and a good diversity, IMO, but so does IAW... just... in a different way.
-Marc.