From what I've heard, I don't like Erdo. Like, at all.
As for the Africans being conservative, I don't know. I haven't looked into them much. I know Sarah is painted as conservative because he was a critic of Francis. I just think it would be cool if the Pope looked more like the universal church and less like the European/American church. Hence, my thought about rooting for someone from Asia or Africa.
Back to the liberal vs. conservative thing....
I know that these guys are human and therefore there's differences of opinion, but I also think that the "conservative" and "liberal" thing is sometimes a bit overblown by the media. Pope Francis was "liberal" but did he actually change any major doctrine? He was certainly pastoral, and willing to meet people were they are. His approach to certain things may have led some people to think doctrines had been changed. But, at the end of the day, nothing was.