Hi all, came across this post, just wanted to share what I know about bridesmaids. I'm not from a traditional chinese family so i have no clue at all about jiemeis, but for bridesmaids at least i know a bit!
You would usually appoint your close friends and family members as bridesmaids. their tasks vary from helping in the preparation of the wedding (i.e. DIY crafts, helping you to pick your gown, follow you on your photoshoot etc), to the AD where they would take up various roles such as reception duties, or ensuring the programme runs smoothly, the rings are in place etc.
The "leader" would be the "Maid of Honour", akin to the groom's side "Best Man". Originally she should be single, and preferably your younger sister or cousin or best friend, someone who is the closest to you. Some see it as passing on your bride luck to her, some see it as because she does the most work, she would be more willing to because she's someone close to you!
Depending on whether you will have your bridal party march-in with you, for me I will, so all my bridesmaids will march-in before my Maid of Honour who is last before I come in. My MOH will also serve as my wedding coordinator with the venue and vendors and will be running the whole show because I did not hire a professional wedding coordinator for my AD.
For the Chinese gate-crashing, I will be having some other friends to help, they will be the "jiemeis" - they will meet up in advance to plan the "tekan" games and on that day will be in charge of preventing my hubby from coming in?! This will also include the older generation like my aunts of course as these are so called the guardians of the "nu fang". People usually have criteria for "jiemeis" - they must be good at getting money out of the "nan fang"!
Anyway hence my "jiemeis" will be different from my "bridesmaids" and "maid of honour", as is usually the more western custom. Western custom also states that the husband has to pay for the bridemaids dresses, and that is why my hubby is (being forced to be) doing. But we will make it a fun shopping trip where all the girls go out together to try on and purchase. This way I can also control on the budget for my hubby - what a good wife right! hahahaha
For "jiemei" from what I see of my other friends, they will request for a certain colour theme but it is up to the girls to choose their own dresses, whether they choose to purchase a new one or to use from their current wardrobe, it is up to them. There will still be a small token, either from the bride herself, or they will divide the money given by the groom, depending on your own individual customs. For me, I will be giving them separately.
Well, that is just for me. Everyone has different customs and traditions. What's most important is both sides of the families are happy with the arrangement! Don't forget your elders in your planning!