Right now I'm trying to find a home for my servers in a local data center. Can I ask about other people preferences on this matter at the serverfault? As I see now, there is no tag for the datacenter related questions.
No. Product and service recommendations are off-topic on Server Fault, and pretty much every other Stack Exchange site.
You should probably consult with techies in your area to get recommendations on the best datacenters in your area anyway - a bunch of sysadmins from all over the world telling you their opinions on the best datacenter that's nowhere near you doesn't strike me as especially useful for your purposes.