i'd say the 187, because it's size is just so versatile. the 188 seemed cute, but if you must have a smaller stippling brush as well, you can get the flirt skunk brush. i know there is no comparison in quality, but i think the bigger size is more useful, and a better buy, overall, for your money. you can do foundation, bronzer, blush, MSFs, anything with the 187, the 188 seems a bit more limiting.