I guess it depends how one defines victory. The Ethiopians we're at least able to be free of European rules from 1896 to 1936 so forty years isn't bad . Not sure how long the other African tribes maintained their independence. In the case of Southern Africa the Afrikaners in the long run defeated every African tribe and didn't have to grant equal rights until the mid 1990s .
So pretty much the Ethiopians had the most effective resistance. The Ethiopians had the numbers and at least some parity in firepower against the Italians.
True but at the end of the day the Afrikaners won at least by 1910 when a united independent white rulled Union of South Africa emerged until of course about 1994 when the ANC took over the country. Pretty much colonial powers could subdue the native Africans until of course post WWII weakened the Western European Colonial Powers and in the case of Portugal the Portugese had to face hostile nations such has the communist countries and even the US and Israel who decided to support the anti colonial movements especially in Angola although not necessarily for altruistic reasons.
As far as I know the most notable wars were those of the Asante, Dahomey, and Benin. Of these, Asante was probably the most successful; the plurality of Yoruba states signed protectorate status agreements, and as far as I know the Franco-Dahomean wars were relatively one-sided in terms of battle results.
Ethiopian orthodoxy is, indeed, a coptic faith (this gets complicated, but politically speaking they had ties to the coptic church in Egypt), but the idea that it was synonymous or even extremely similar to Russian Orthodoxy was largely a construction by Russian actors who sought to establish ties with the Empire. One must remember Russia did have some interests in this region of Africa, but they also would have recognized actual conquest was impossible.
Technically, they were during this period. The church was headed by a Copt taken from Egypt in a theoretical sense, however ecclesiastical power actually was in the hands of Ichege, with the Abun (the Egyptian) usually serving as a figurehead. The church by this point had its own, generally separate, history of schisms, controversies, and so on that made most of its members quite distinct.
Not sure about the Spanish commiting genocide on indigenous people. Yes certainly if Indians were deemed an obstacle they were killed or driven off but there were substantial Indian communities when the Spanish had to cede independence to Latin America especially in Southern Mexico,Guatemala and Bolivia.
