True, I have to get parts from Kenya for Deutz , which would take one day as I've heard, but it's Africa, everything is delayed, nobody caresWith my limited knowledge; I would lean towards the Massey Ferguson. Although in North America, they really weren't that popular through 90s and early 2000s, India and Pakistan, they are wide spread, as well as Latin America. So, probably more parts sustainable. Not know much about Deutz, but you don't want a situation where on bad political move, and you can't import parts.
On the positive side, I've heard about someone owning the same Deutz model for 9 years without any serious repairs
Massey Ferguson is indeed more popular than Deutz Fahr here and more spare parts available