With the recent Reddit leak from WWE, it has also been noted that betting companies such as Bet365 and SkyBet have featured mainly winners with lower odds. Yes, that is the point of betting companies I know so here is who they have down as favourites for each Summerslam match.
World Heavyweight Title:
Alberto Del Rio (4/7) vs (5/4) Christian. They have Del Rio as the favourite.
CM Punk (7/4) vs (2/5) Brock Lesnar. They have Lesnar as the favourite.
Damien Sandow (8/13) vs (6/5) Cody Rhodes. They have Sandow as the favourite.
Dolph Ziggler/Kaitlyn (5/6) vs (5/6) Big E Langston/AJ. Evens.
Kane (11/2) vs (1/10) Bray Wyatt, They have Wyatt as the favourite.
John Cena (2/1) vs (4/11) Daniel Bryan. They have Bryan as the favourite.
Note: There is no option for a Orton cash-in, however that would not affect the match result.