Last spring I went on our first (and likely only ) safari to SA. Similarly, due to budget and space, we had a limited list: Kudu, Impala, Zebra, Warthog, and added an Nyala. Originally we were only planning on mounts for the Kudu, with european for the impala, and a rug for the zebra.
Once we were there and had the critters on the ground, we decided without question that it would be a crime (to us) not to do shoulder mounts of the kudu, impala, and a quartering mount of the Nyala. The warthog ended up being truly exceptional, but I knew there was no way the wife would want to look at that every day, so we went with the carved skull. Even while we were there, we sketched out the house,figuring what we could put where. Now, that darn zebra rug the wife insisted on ....I doubt it will be on the floor, most likely a wall.
It is a very hard decision if you have limited space, and a lot of folks simply dont get that the size of the house and wallet for most people are limited. Truly, both the sable and kudu are beautiful. Perhaps wait to the day and see which one strikes you? I think without question the sable has the most beautiful hide, but I think the kudu is the most beautiful and amazing of the two animals.....