It is quite difficult to get an overview of the many diverse lodges and safari offers in Africa.

I want to recommend this website http://www.africatravelresource.com to anyone planning overland trips or safaris in East Africa or Southern Africa.

It is the most complete compilation of high-end accomodation in that region, with critical remarks and price indicators (click on lodges in each region).

P.S.: I only read their website and have not tried their services.