Help with knitted lace

I would say that it depends on what you are making. If you want something fine with lots of holes such as a doily or a bookmark or a light lacy shawl then the crochet cotton would work very well. If you are making a sweater with lots of holes then the heavier weight would be appropriate. What is your pattern for? Actually you can have a beautiful shawl from either weight it just depends on what you want the finished product to look like! For learning purposes heavier is easier to work with.Lace knitting is fun! It is what I do most of the time now, from doilies to shawls and everything in between it is fun. Don't be afraid of the charts.

I have made several lace things with worsted weight yarn. I recently made a nursing shawl for my daughter in law. Actually I have made several shawls with worsted weight. They turn out beautifully. They look different than the scarf that I made out of cobweb weight. The finer the yarn or thread the more difficult the project looks even though it probably isn't anymore difficult! As for patterns I would go to ravelry and look there. There are many patterns for free and for sale depending on what you want. Many for worsted weight and many for lace weight objects. I have found it to be a great resource. Good luck!