i7 processor and a 960 gtx possibly 970. What PSU is the best for a cheapish price.
The EVGA G2 550W is a solid option although it is a bit more expensive than the GQ but has better components.
Which region are you from?
Not all units are available everywhere and some have access to nice PSU like XFX or Silverstone that are cheaper than usual.
What do the other links tell me?
First link is to the EVGA GQ 650W, which is what they're recommending. The second link is a "tier list" that is flawed that you shouldn't use, and the third link is to a somewhat in-depth review of the EVGA GQ 650W.
Because some units are listed in tiers one up or one down from where they should be for dumb reasons. It is still a good resource for a beginner to enure you get a good quality PSU.
This. Its good for a general sense but I wouldn't use it to recommend units on here to other people or use it as a source.