BAML CorpFin Group vs Citi/CS FSG

Does anybody have any information on BAML's CorpFin group or Citi's/CS's Financial Strategy Group? Seem like very interesting groups that would work on special situations/distressed M&A and capital raising, but not too much info here on the forum. It sounds like the CorpFin group was a top group and pretty selective when it was at ML, but there hasn't been much on the group since the merger. Anybody familiar with these two groups as of recently? Thanks.