Server to sign up with ...
 

Comparing servers from hostsailor.com and black.host, which way is better to follow? Any ideas?

If you want to know opinion of their clients - you'd better have a look at reviews. If you are looking for good servers try to check as many companies as possible. I always recommend checking and having a look at: gigapros.com, regvps.com. They have good set of servers, which can be used to satisfy all your needs.

Accounts from black.host and planethoster.com are the best to sign up with.
They are the best hosting companies I have used to date. Their online support is fast and efficient and has assisted me with any problems I have had promptly. Their servers are fast and fully featured with everything needed to run professional websites, and security is their number one priority for all their customers.

Deals from planethoster.com and legionbox.com are worth trying.
I highly recommend everybody to work with them. Just go ahead and try. You will never regret it.

For me, dedicated servers from Regvps.com work great.
So far, I've extremely happy and satisfied with their service! Uptime is Perfect.