I was recommended by a friend and he sent me 3 VPS companies

Code:
1/ http://www.webmastersun.com/threads/13979-HostSlim-PREMIUM-MANAGED-VIRTUAL-PRIVATE-SERVERS-IN-NETHERLANDS!-DDoS-PROTECTED!!!

2/ http://www.webmastersun.com/threads/15476-Unmanaged-UK-VPS-8GB-PURE-SSD-Storage-2GB-RAM-2-CPUs-1TB-Transfer-1Gbps-Uplink-at-%C2%A33-month!

3/http://www.webmastersun.com/threads/15559-Luxin-Host-Pure-SSD-VPS-Hosting-E5-CPU-Unlimited-Traffic-Dedicated-RAM-24-7-Live-Chat
but i don't know which one is better, my budget is $35 / month, I want to upgrade my shared hosting to a new VPS for my sites. My sites are Wordpress sites with 600 visitors/ day

Can any one tell me from the list above, which VPS is better?

Please advise me!
Harry