IndieWire vs Film Comment polls

It's year-end, which means movie polls!

Here's the Film Comment list of 50 best films of the year. The poll included 120 film journalists and critics.

Here's the IndieWire list of 150 [or so] best films of the year. The poll included 162 film critics.

Here's the Village Voice List polls 95 critics.

Of note:
Drive
#4 on IW
#22 on FC
#9 on VV

Shame
#11 on IW
#21 on FC
#19 on VV

The Artist
#13 on IW
#27 on FC
#17 on VV

Martha Marcy Mae Marlene
#15 on IW
#35 on FC
#13 on VV

A Dangerous Method
#16 on IW
# 5 on FC
#12 on VV

We Need To Talk About Kevin
#18 on IW
NOT ON FC top 50
#32 on VV

Poetry
#21on IW
#10 on FC
#18 on VV

Le Havre
#30 on IW
#12 on FC
#34 on VV

Why the differences?