In 2013, Lookups are rendered first as a dropdown before "Look Up More Records" is selected. This is great for the User, however, the list presented always resolves alphabetically and doesn't respect the View Sorting criteria. As an example, if I have 3 records:

OPTION A (Display Order = 2)
OPTION B (Display Order = 3)
OPTION C (Display Order = 1)

But in my Lookup View I sort them based on text field Display Order as
OPTION C
OPTION A
OPTION B

In CRM 2013 the Options are sorted as
OPTION A
OPTION B
OPTION C

due to the alphabetical order. If I have a picklist of 15 options and I want the most popular 5 Options to display first, I have to make them display alphabetically first. There are ugly workarounds on this, but it would be nice if the lookup control would simply respect the view metadata that is already being used to query the records.