I have short listed the following colors for my RS and below are the pros and cons for each in my opinion. Feel free to comment. Would like to know opinion of other members here too.
Option 1: Meteoroid Gray
- Looks most stunning out of 3 options
Relatively better hides the black parts, i.e. door handles, side mirror, trunk spoiler, rims all give a very subtle color contrast difference.
Will be a pain to keep clean
- Paint matching will be a pain too in case of accident
- Being a darker shade, scratches over time will be more prominent
- Costs more
Option 2: Lunar Silver
- Easiest to keep clean (dust much less prominent)
- Easier paint match
- Scratches will be least prominent
No extra cost
Looks bland
- Black door handles, rims, side mirrors will contrast most (not a fan of contrasting)
Option 3: Urban Titanium:
Color shade wise it seems in between the above two.
Looks less bland than Lunar Silver as its darker but less darker than Meteoroid but relatively easier to keep clean, match paint and it too has no extra cost.
Scratches on it overtime will be more prominent than Lunar but lesser than Meteoroid.
In this 11th gen, White color is a no go for me on RS spec, due to black mirror, door handle, spoiler, rim contrasting. Can’t be seen driving in a panda. 
