Houlihan Lokey was ranked #1 in 2008 for being the top Investment Banking restructuring advisory firm. They worked 31 cases in 2008. The closest to them was Mesirow Financial which worked 12 cases. They worked on 11 of the top 15 largest bankruptcies from 2000 to 2008.
The part that interested me most, since they will be working for the committee of unsecured creditors, is that they were rated #1 by Thomson Reuters for their "M&A Fairness Advisory Rankings" for 1999 to 2008.