One way vs two way backlinks

for Vstar:

Getting paid 1 way links or 1 way links from forums, articles and blogs are as much "linking scheme" as personally contacting site owners and asking for link exchanges.

Unless you are using an automated system for generating those 2-way links it's not a linking scheme but a link building strategy.

 

one way is better.. you can link to them and you dont have to share the rank with them..

 

i agree, 1 way backlinks is the best.
or you can make 3 way backlink. A-->B-->C-->A