omg i have been searching for this thread! i always have so much trouble, and people at sephora/any counter will insist shades that do not suit me do.
so far, the best matches i have found are MUFE mat velvet in 15 and missha's bb cream in 13. i actually have a bunch of bb creams swatched on my blog, but i am new here and don't want to post a link if that is not okay.
i want a different foundation at this point... i am tired of the bb texture and don't like the mufe mat. i really want to try something with a bit more coverage and a nice finish. i like the idea of the mac foundations... i tried the cream compact one at one point and liked it, but it doesn't come in any shade that matches. i hear a lot about studio something or other as well.
i am also curious if anyone has tried the hourglass veil foundation? it has a 0/porcelain shade, but i don't know if it is light enough..
other foundations/opinions: maybelline fit me in 110 matches but i don't like the texture, MUFE hd in 110 is a bit too dark/pink, l'oreal truematch in W1 matches fairly well but breaks me out, NARS siberia powder matches.
edit: here are my bb swatches on my arm. best face matches are the missha (2) and tarte (last), but tarte is very very sheer
wrist (top) to elbow: 1. brtc jasmine water, 2. missha perfect cover in #13, 3. skin79 (green bottle), 4. dr. jart detox (black bottle) (american), 5. dr. jart waterfuse (teal bottle) (american), 6. tarte bb primer in 'fair'