I've always thought "Army Ants" is superb but don't hear that often from others, so therefor it's their most underrated number in my opinion...
I've never got "Down" really, to me it sounds a little dull and grey, it's their most overrated to me
I think "Days of The Week" is great, but sure it's not their best SINGLE...
I used to listen to "Creep" a lot, but it is a little one-sided, and I think it's slightly overrated because of being a hit single, but otherwise I recall a lot of criticism towards it, so maybe not a huge fan fave either... but, I do think the single version (Scott high singing) is well done...