I'm not a fan of Lumumba, I sincerely believe that at his core he was potentially corrupt as any African leaders of his day. I'm not convinced he would have taken Congo on path of prosperity had he remained in power. He was a great showman but a poor administrator, perhaps his greatest blunder was insulting the King of Belgium who had arrived as guest, that innate inability to be politically smart secured his demise and soured relations with Belgium.
Mobutu, was not perfect and yes he was very corrupt, but, I personally credit him with instilling pride in the Congolese people for natives languages and culture. I dare to say, without Mobutu, we not have contemporary Congolese Music.
Sorry if I insulted some of you, this is just my opinion