Right server to buy from a decent hosting provider ...
 

Servers from owned-networks.net and legionbox.com are attractive for me and I wonder which way I should go and why?

I’d recommend NeironVPS.com to anyone wanting a stable hosting service. These guys are wonderful! Fast technical support. Their rates are really affordable and you really should take a look at them if you want to create a site or transfer from an old host!

Check out servers from time-tested companies: qhoster.com and planethoster.com.
Support is great, control panel is ever user friendly. Will gladly recommend to anyone.

I think you should broaden the range of your search. As good alternatives, check out
1) GTHost.com
2) ZakServers.com
3) Midphase.com
I'd like to say that I have great network uptime and the connection speed is fast at least by my standards.

Servers from qhoster.com (15OFFALL48HRS - 15% off) and ownwebservers.com are well-balanced and cheap.
They are brilliant with providing solutions, support and technicians on hand 24/7.