I ran 2 experiments each lasting 120 seconds.

For the diceware list as a seed population it finds 4570 passwords. The 6 longest ones are:

11 michelle420

11 karen123456

11 iloveyouu16

11 iloveyou789

11 iloveyou234

11 iloveyou191

For the top 2000 ngrams from the rock_you list(which is the current list used) it finds 5317 passwords. The top 6 longest passwords are:

14 fuckyouhackers

13 fuckyouhahaha

11 sexylove889

11 scooter1234

11 princess123

11 iloveyouu16