Correct export color space for wide gamut monitors.

Question

Running a photography studio I have 4 typical scenarios of how clients or end users will see my photo work.  I create and edit the photos using LR 3 on a HP 2475w (wide gamut) monitor.  I'm aware that there are color shifts, but trying to figure out which export color space to use to be most consistent.
A) Wide Gamut monitor using color managed software or browser such as Firefox.
B) Wide Gamut monitor NOT using color managed software such as IE 8.
C) Standard monitor using color managed software or browser such as Firefox.
D) Standard monitor NOT using color managed software such as IE 8.
A) gives the best results and that's what I run myself.  No matter the color space that I export (sRGB, aRGB, or my custom calibrated ICC) the images appear to be correct 100%
B) gives mixed results...the hosting site for my photos seems to oversaturate a bit when I view the photos in their preview size which is what my clients see, when I view the original photo in full resolution (this feature disabled for my clients to avoid them downloading full rez copies of images), then the images appears a bit dull (70%).  When I try this same scenario using aRGB export, it looks better (90-95%).  When I export it using my monitor profile then the photo is spot on 100% however my monitor profile shows the photo incorrectly when viewing it using the standard Windows Vista photo viewer, it appears lighter and less saturated which I guess I expect since it's not color managed.
C) On a standard monitor the photos all look the same regardless of color space export so long as I use a color managed browser such as Firefox.
D) This gives pretty much the same breakdown of results as scenario B above.  At the moment, it appears that when I use my custom ICC profile which is the calibration of my monitor...I get the best web results.
However my custom ICC profile gives me the worst local results within my windows viewer and when my clients load the photos on their machines, no doubt they will look just as bad on theirs regardless of which monitor they use.  So aRGB seems to be the best choice for output.  Anyone else do this?  It's significantly better when viewing in IE on both Wide Gamut and Standard LCD's when compared to sRGB.
I would guess that my typical client has a laptop with Windows and they will both view the photos locally and upload them on the web, so it needs to look as close to what it looks like when I'm processing it in LR and Photoshop as possible.  I know that a lot of people ask questions about their photos being off because they don't understand that there's a shift between WG and non-WG monitors, but I get that there's a difference...question is which color space export has worked best for others.

Answer 1

I am saying that since images on the internet are with extremely few
exceptions targeted towards sRGB. It is extremely common for those images to
not contain ICC profiles even if they really are sRGB. If they do not
contain ICC profiles in the default mode in Firefox, Firefox (as well as
Safari btw, another color managed browser), will not convert to the monitor
profile but will send the image straight to the monitor. This means that on
a wide gamut display, the colors will look oversaturated. You've no doubt
seen this on your display, but perhaps you've gotten used to it. If you
enable the "1" color management mode, Firefox will translate every image to
the monitor profile. This will make the colors on your display more
realistic and more predictable (since your monitor's very specific
properties no longer interfere and the image's colors are displayed as they
really are) for many sites including many photographic ones. This is most
important on a wide gamut display and not that big of a deal on a standard
monitor, which usually is closer to sRGB.
It seems you are suggesting that for a wide-gamut display it is better to
try using your own monitor's calibration profile on everything out there,
assuming on images posted with a wider gamat it will get you more color
range while there would be nothing lost for images posted in sRGB.
Indeed. The point of color management is to make the specific
characteristics of your monitor not a factor anymore and to make sure that
you see the correct color as described in the working space (almost always
sRGB on the web). This only breaks down when the color to be displayed is
outside of the monitor's gamut. In that case the color will typically get
clipped to the monitor's gamut. The other way around, if your original is in
sRGB and your monitor is closer to adobeRGB, the file's color space is
limiting. For your monitor, you want to make the system (Firefox in this
case) assume that untagged files are in sRGB as that is what the entire
world works in and translate those to the monitor profile. When you
encounter adobeRGB or wider files (extremely rare but does happen), it will
do the right thing and translate from that color space to the monitor
profile.
Wide gamut displays are great but you have to know what you are doing. For
almost everybody, even photographers a standard gamut monitor is often a
better choice. One thing is that you should not use unmanaged browsers on
wide gamut displays as your colors will be completely out of whack even on
calibrated monitors. This limits you to Firefox and Safari. Firefox has the
secret option to enable color management for every image. Safari doesn't
have this. There is one remaining problem, which is flash content on
websites. Flash does not color manage by default and a lot of flash content
will look very garish on your wide gamut display. This includes a lot of
photographer's websites.