PE Recruiting from a MM PE Analyst role

How do PE firms consider MM PE analysts for recruiting? Historically the top funds have only taken bankers and consultants from top groups, but I'm wondering how they'd look at someone with 2 years as a PE analyst (at a shop where associates come from BB/EBS) compared to someone who did the 2 years of IB at a BB/EB themselves.

PE Analysts are a relatively new phenomenon, so it would be great to hear any stories of these analysts moving to other associate roles, or insights from PE professionals/recruiters as to how they'd evaluate a PE analyst.