Over the last while I've personally only had issues with the 8th site - it sometimes works, and sometimes doesn't. The other sites have been working fine for me. I always check whether my votes have gone through.
Oh I notice now that the 8th site (minecraftservers.biz) has apparently been removed from the voting page, interesting... It still worked just fine for me a minute ago.
Comments on Profile Post by Tbird1128