Well, you should fix your grammar mistakes before posting, especially in the title, uhm..
Anyways, Warband currently doesn't have many mods and most of them are unfinished, but in my opinion the following ones seem to be the best -
1. 1257 AD - because the goals are simply awesome and if they're fulfilled then you'll have a perfect mod.
2. Warring States - it's not finished yet, but if it gets finished then it'll be fun, nothing much changed in it, but still it seems to be good in my opinion, this mod has a new faction added that owns 1 town and 3 villages and will have some sort of kingdom managment addon.
3. Calradia Divided - it's not finished yet, but must be really good when finished, read their topic.