I think the Egyptian caliphate was more awesome, they fought off the Mongols and built loads of universities and represented a large chunk of arabic culture. The Ottomans generally didn't do much for history, except play the colonisation game with the rest of europe and annoy eastern europeans. Militarily though they did great, they were the first to use cannons effectively, Janissaries and Sipahis are by far the most elite middle eastern troops that have ever existed and they started off as an obscure tribe which managed to tear down an empire and turn Byzantium into Turkey.