panjetty: I think the color a house should blend into the neighborhood homes. The exterior paint on a home should not stick out like a sore thumb. If a person lives in a San Francisco neighborhood where the houses are called painted ladies, you might paint your home purple and that purple would blend in for that particular neighborhood (photo below). Some neighborhoods (gated communities) dictate to the home owner what color house is acceptable, so the gated community neighborhoods always remain beautiful & cohesive. I do not disagree with you, but I always look around the neighborhood before I have my houses painted and I appreciate my neighbors who also look around the neighborhood and choose colors that blend in and do not "make a statement".

Are there some traditional colors in the area where this is being built? Right now the U.S. Is pretty beige/tan/greyish. And what style of landscaping do you plan?

You have three different laminate floors. If you want unity, you need to decide what will give you unity faster. The floors are close enough to ignore there differences. Without seeing the wardrobe units I can only guess what will work best. Add photos of the units you are contemplating and you will get more responses.

The potential yellowness discernible in Simply White is because it is actually a more colourful white from the Yellow Hue Family. That little kick of colour can work well on ceilings, as that plane can often make a colour appear a little darker & more greyed anyway. So sometimes a choice of more neutral greys here have a possibility of ending up a little grey & shadowy. This is obviously dependent on the available light. Chantilly Lace is a more neutral white from the Green Yellow Hue Family. In character in balanced light it can appear ‘just white’, but in some light people see a hint of its inherent greenness, some might even read it as blueness. Again depending upon how well balanced the available light is. Super White OC-152 is that bit more neutral & so could read a touch more crisp again. Many people prefer a more neutral, crisp trim. It can give you more options for alternative wall colours, should you decide to repaint down the line. Neither Simply or your trim choice would be sat next to each other though, as the wall would come between them. I think the biggest concern would be sitting Simply White next to Classic gray for the reasons mentioned before. If you are set upon Classic Gray then I would repaint the ceiling and swap to one of the more neutral options. I would shortlist your line-up and sample upon board or lining paper in your space so you can move them around.