Now I'm preparing the "which cup may be for you" kind of article. You've got the size aspect covered. The only thing that I would like to add to my article that I can't find is some kind of comparison of hardness/squishiness of the materials. Let's say 1 is the squishiest and 10 is the hardest. I know it's not exactly measurable. But please play with your cups for me. I know you love doing it ;) (cups made me look forward towards my period - it's madness).
The brands that I'm most interested in are those available on eBay + European brands - so almost all of them.
P.S. I've already helped someone convert - she wanted to try cups but didn't know how to go about getting them. Like I said - madness. The only thing I can compare it to is my enthusiasm for brafitting.