In terms of just technique for technique obviously Gane is the better striker, and he's shown that he can impose his pace and style of fight on everyone he's fought. A measured, controlled, outside 'points' style attack, picking at his opponents with mostly single strikes, lots of kicks to the lead leg, the knee, flicking kicks to the body, jabbing the body, rarely does he look for a huge swing or a big flurry. He controls the distance in a way no one else at heavy weight really can.
I love Gane, I have backed him one way or another in every one of his UFC fights... But I don't think I can bet him here, Gane at +140/150 I'd be in, but at a pick'em it doesn't make sense to me.
All the danger and single shot death is with Francis, he could get picked at with kicks and jabs to the body for 4 mins of a round and then land one or two big punches in return and undo all Gane's work.
I think I'll look for a live entry on Gane, but some pokes are Francis early rounds KO lines make sense to me.