A sense of Purpose and Come Clarity are very hit or miss for me, and are mostly "meh", but I really like Soundtrack to Your Escape. I know i'm one of 5 people who will admit that on the internet (which I always found odd. Online STYE gets trashed to no end, yet "The Quiet Place" probably gets one of the best crowd reactions at live shows).
And now that Dark Tranquillity has been brought into the discussion, I think Fiction and Character are their best albums. Fiction especially.