I tend to agree with the OP's comment about the CW seat - it's comfortable for sitting in, you can get a good upright position for working, and with the new bedding has become better than before for sleeping.
I've been doing long haul travel regularly for around 20 years now, on VS, BA, UA, NZ, and LH and I'd say that some of my best in-flight sleeps have been in the current CW seat. I always found the VS suite mattress too hard, despite the extra shoulder room, but NZ's tweaks to that improved it significantly, while the previous VS "angled flat" seat was really the predecessor of all the coffin seats that followed.
The big killer for me is nowhere to put my glasses - which I'm basically blind as a bat without - so putting them in the low-level drawer isn't an option. So I tend to sleep in them which isn't great - unless I've got an upper deck window seat on the 747 or 380. So the thing that's really missing for me is some sort of trinket tray or nook for things like that.