Second body, OM-1 ii or G9 mkii?

I have an om-1 that I use primarily for bird photography. After having to go without for about 10 weeks while it was being repaired I decided a second body would be nice. I'm getting more into video and it seems that the g9 mkii makes sense for this, but as I am primarily a bird photographer the improvements in the om-1 mkii are also attractive. I suppose my questions are 1. does anyone have an opinion either way?
2. how is the video autofocus on the om1-mkii, does it work at 120fps? Cheers,

Tom