VPS to sign up with, which is that?

VPS accounts from hostround.com and rockhoster.com are to my liking and I have to make a right choice, so what's that?

After reviewing both the hosting companies I would prefer rockhoster, the only reason would be the cost. Reliability and security seems to be the same. Both have live chat that's a positive feature.

If you are still looking for more options then the following might be interesting :
You can search for cheap vps hosting plans at following websites:
Cheap VPS Hosting & Web Hosting Directory

Would like to add that vpsblocks.com.au makes me feel confident that my website is in good (and trusted) hands :)
Get 30% OFF FIRST ANNUAL* - 30% off your first annual or semi-annual payment. You can save hundreds. Code: VPSHOST30

I would like to suggest bodHOST than hostround.com and rockhoster.com

With bodHOST VPS hosting solutions you get

• Highly Reliable servers
• 24x7 Support
• Complete control with root or administrative privileges
• Flexibility to install software and custom applications of your own choice
• Total isolation from other VPS accounts on the same server
• Individual VPS can be rebooted independently
• Dedicated Web, Mail, FTP and Database server

I have nothing bad to say about Rockhoster.com Network only good. I'm in host heaven.
Excellent support, free domain for life, and reasonable pricing... what else can a customer ask for?