Switching printing services - Mpix to WHCC

I've been using Mpix for printing fine art reproductions for the past couple years. After having a few issues with their service, I want to give WHCC a try.

A couple questions:

- Which type of WHCC prints would be the closest match to the Mpix giclee semi-gloss photographic look?

- How does WHCC package orders of smaller prints? Mpix packages smaller prints in the rigid paper envelopes and I've had issues this past year with these envelopes arriving bent.

Thank you!

Edit: Or is there another printing service that you would recommend?