So, I should start by saying I know Aps-c exists and represents a well supported middle ground but as someone who A: plans on being a hybrid photo video shooter B: Has shaky hands due to a mild disability and C: wants something small enough to carry everywhere but also D: is probably going to be shooting in a lot of darker conditions it's really hard for me to choose.

The fact is Olympus cameras have phase detect AF which is what kept me from considering Panasonic for a long time... But I could get a full frame body used for around the same price... But it won't have ibis or an ip certification and there are limitations around shooting 4k.

I say this knowing I may trigger a sensor size holy war, but please advise