Socks that Rock question

For those of you that have bought this yarn…I see there are three different weights to choose from-Lightweight, Mediumweight and Heavyweight. I was wondering what these individual weights are comparable to ie: Mediumweight is similar to Cherry Tree Hill, Lightweight is similar to Regia etc…
I see the different needle sizes suggested but I am still not sure. :shrug:



The lightweight is probably about the same as Regia…I think most poeple probably use 1’s for that.

I have Cherry Tree Hill, but I’ve never knit with it yet, but I’m guessing it’s similar to the Mediumweight…probably 2s. :shrug: