I mean which is your favorite data center ?
That depends on what we're looking for. For a small VPS system it's Contabo due to prices and their VPS work very good. Also 1 Dutch company which is more expensive but runs very well, I would have to lookup the name.
For hosting we want dedicated servers, we had several datacenters, but were looking to get good value for the money, so a good balance between what we get and what it cost.
So at this moment (since we're in Europe) most certainly Hetzner for servers.
We have been with OVH, but for the same price, a server went down Friday at 18.30 and we had to wait to Monday 08.00 to get the harddisk replaced. So we instantly left there at the end of the month to Hetzner, where we still are, so yes that's the most favorite data center for me.
The service at Hetzner is very good. We have had more disk issues over the night. But then have had choices to instantly replace (mostly that happens within 30 minutes) or fill in a time windows. So we had once a disk issue, disk still working but getting worse at 19.30 and agreed it would be replaced between 01.00 and 0.1.30 at night.
Server went down at 01.05 and was back up at 01.12 with the new disk. We even had on replaced instantly on another server at 03.30 at night.
So for the price paid (was around 45 euro's a month) it's very good service imho.
They don't do software support (at least not without seperate SLA as far as I know) but they often can help if the server does not reboot. For example once they booted the server back to the old kernel and I could remove the new one which was corrupt.
It's indeed good to have multiple companies anyway, that's for sure.