Bookies have Chiefs as favourites, rightly so, but I think it will be closer than the odds on offer.
The forwards battle will be crucial to the outcome. I've never been impressed by MacIntosh in the scrum but he's good around the park. Not looking forward to Retallick coming off the bench. But has he had any game time this year in trials or is this his first turn out? Ditto Messam?
Not sure that the Brumbies' lineout will be inferior to the Chiefs. Probably have four legitimate jumpers in Carter, Arnold, Fardy and Smiler, with Butler also an option. Will depend on the accuracy of the throws I expect.
These teams have put on some great rugby in recent years with not a lot between them. Home ground advantage might be telling at the end.