Im in Chicago and EQ is pulled a lot especially for Discover, I have applied for that card so many times over the past 2 years. Looking at my reports, back in 2013 they were pulling TransUnion, all of 2014 EQ and when I applied again and for the last time for at least a year they double pulled me! EQ and EX.
I get a lot of EQ/EX double pulls from Citi.
Chase has always been EX/TU pull
The comenity cards have always chose EQ.
Macy's/ Bloomingdales use EQ bankcard fico score for upgrades and cli's
Cap1 tends to use FICO 04 EQ score for cli's and of course all three for approval. EQ definitely is used a lot.