Hey Chad, you just knew I would reply didn't you?
I have studied them both quite a lot, they are closely related being true buffalo. The Australian water buff are more correctly called swamp buffalo, there is another variety called the riverine buffalo which is a bit smaller and has horns that curve more like a cape buffs. The aussie buff are on average 350#'s heavier than cape buff, but aside from being more stocky they are nearly identical to capes, from behind the head back. While I was in Africa we compared photos of both animals and with the heads covered it was hard to tell them apart. The photos in the "Perfect Shot" book of anatomy could be used for either animal. By all accounts the senses of both animals are the same and that is excellent. It used to be, when there wasn't much info available that the water buffalo was looked upon as an easy warmup for a cape buff hunt, now that there is more experience, most folks are saying it should be the other way around. One advantage of the water buff is that they are mostly active in the day time, the problem with cape buff is that in a lot of areas, they are almost entirely nocturnal. Rick