I can't answer regarding a comparison because I only use Gina K. Designs, go figure.
But, here is what I can tell you about our envelopes. We took a LOT of time choosing the perfect envelopes to add to the Gina K. Designs collection.
One of the things that bothered me with envelopes that I had purchased in the past was they smoothness. Although ultra smooth envelopes seemed like a great idea to me, I always smeared them as I wrote the address on them. It seemed like it took longer for the ink to dry and it always resulted in smearing.
Also, whenever I made a card that contained a brad or button, the ultra smooth envelopes would tear, usually somewhere along the way to the recipient.
So, in finding the perfect envelope, we wanted to make sure ours were a little thicker, had a little more tooth to them for faster ink drying and less chance of a puncture wound.
The envelopes come in a reusable clear box and there are 25 to a pack. They come in our Pure white and Ivory.
You will not be disappointed.
This was a very well thought out addition to our line and we are very proud of the quality of our envelopes.
Hope that helps.