Bowers and Wilkins, 801 D4

I have B&W 802D's & love them. They are not bright in my system (all SS BTW) / room. I have not heard the D4 version but would check them out in a heartbeat if looking to replace the 802D's. 

How would you compare the 801d4 to the Amati G5 from Sonus faber?

With respect to detail, I know Sonus colors the sound a little bit.

I like my steak rare, how do you like yours?  Choosing speakers is a personal thing.  You have to please you.  No one else can help you with this decision.  You are considering very good speakers.  Either is a good choice.  Just make sure it is your choice.  

Basically, as best I can tell by perusing all of the comments is that you should forget everything everyone else has stated because either (1) the only speaker worthwhile considering is the one the person commenting is suggesting or (2) no one's opinion other than yours counts.

There is some truth to (2). If you spend enough time listening to other speakers, you may ultimately gain some clarity regarding what you like and, possibly, find a speaker that you truly like. Once you cross the threshold of around $30K/pair and above, you will find that speakers become more specific in the way they reproduce music because they emphasize certain specific characteristics in their reproduction of music. Some demonstrate amazing clarity and sharp imaging; others demonstrate a certain voluptuous quality to the sound. These attributes are due to the way a good speaker is "tuned". Their outputs are analogous to fine violins; they all are "right", but they all are also different. Which you prefer is solely up to you.

The way a speaker sounds is a product of its fundamental design, and it is immutable. Different speaker cables, for example, cannot impact a speaker's intrinsic characteristics in any significant way. That is why you must choose your speakers wisely.

Just as a rule of thumb that I’ve noticed between a few major brands;

B&W = good bass, thin mid-range, mildly bright and detailed tweeter, very wide and tall sound stage.

Focal = thinner bass, thin mid-range, bright and very detailed tweeter

Sonus Faber = bass similar to Focal, fullest mid-range, mildly bright and detailed tweeter

I consider Sonus Faber being the all around average or middle ground between the others. Older generations might be slightly different due to tuning changes.