Fantastic band, I recall one day, like 6 years ago, when I bought both the debut and Toxicity. I was floored and I even wasn't into heavy music. Toxicity remains as my favorite album by them, nowadays.
Steal this Album has some fantastic material, but some of the songs feel like filler to me. Same thing with Mesmerize/Hypnotize; some amazing music, but some other meh moments.