Guitar: WDADU. Same reasons as walmartsecurity.
Keyboards: SFAM. The dramatic piano parts, the lead patches, exotic sounds (like in Home), everything is brilliant IMO.
Bass: FII. For some reason I really like the overall bass sound here. Trial of Tears, Hellīs Kitchen, New Millenium (although that would be the chapman stick), really awesome sound.
Drums: Octavarium. This album really shines drumming-wise IMO, and part of it has to do with the drum tone, particularly the snare. From the power of The root of all evil, to the intricacies of These Walls, the complex parts of I Walk Besides You, the great little cymbal fills in Octavarium, it all sounds great.
Vocals: Black clouds and silver linings. Sure, IaW and Awake were Jamesīs glory days, but I really enjoy the sound of the vocals in DTīs recent work.