There are better Muse albums in my opinion, but what they've done here is quite impressive. This is an extremely varied and complete album from my point of view. This is definitely their most ambitious album to date, including a 3 part symphony. Sadly, lyricism seems held back and cheesy at times (Guiding Light). Still this has some of the best Muse songs that helped propel them into the mainstream.
My favorite tracks from this album are:
Resistance
United States of Eurasia
MK Ultra
Exogenesis Symphony Part 3: Redemption