I have a simple question for you is there a relation between hosting and SEO, I think there is, and I can point some elements, but i will love to learn more from you
Well not directly. The actual relation will be with a site and to whom it is registered with. If you own 100 sites and you interlink them for SEO purposes, its pretty obvious. If you want to create a network of blogs different c class hosting will be necessary. SEO and hosting can be related in a small way in case you are targeting a specific country. It has been shown that to a very small % hosting location favors country level targeting
I heard that there were some talks that server speed consist of a small part in Google's algorithm now, but then again we are never sure. Maybe just rumors though