Why Gane is the betting favourite:
1. Gane is unbeaten (10-0) Francis is not (16-3) Gane has never been in trouble and Gane has won in more ways (KO/TKO, decision, sub) more frequently
2. Francis has shown major psychological weakness in at least one of his fights (Lewis)
3. Francis was breathing with his mouth open in the first round of Stipe 2 without being hit with anything significant to the head: he has an awful engine
4. Stipe was 38.5, shopworn, less active, 234 lbs, a far inferior kickboxer than 32 year old, fresh as a daisy, 247 lbs Gane and was still able to absorb 36 strikes (28 head) before succumbing
5. The Stipe 2 Octagon was tiny because the UFC wanted Francis to have the advantage, this time the UFC will disadvantage him if anything (drug testing, Octagon size, canvas density, refereeing, judging etc.)
6. Gane is trained by Francis's ex-coach: possibly the man best placed on the planet to give Gane a winning gameplan vs Francis
7. Francis has recently been talking about boxing Fury and Wilder, possibly suggesting that he isn't fully focused on the fight with Gane this weekend and there is huge pressure on Francis to win (or the boxing crossover potentially disappears).
8. Gane has been much more active than Francis (Gane has fought 4 times in just over a year, Francis has fought just once in just over a year and a half) and has had impressive performances more recently
9. Gane has schooled and battered big power strikers in Lewis (who beat Francis) and Jairzinho and fwiw, looked to be beating old sparring partner Francis in the tape from years back
10. More often than not the elite technician beats the elite puncher, especially if he has a good chin
Ofc, all of this may be irrelevant if Francis lands a bomb and Gane can't take it. Gane seems to have a good chin but it hasn't been seriously tested yet, that's the biggest question mark for me. If Gane (when he has to) can take the power as well or better than Stipe did in the first fight, he very likely wins.