Should I get Civ V Gods and Kings, or Civ IV complete?

Gods and Kings isn't standalone I believe. With that said, it along with Civ 5 are far better imo.

Civ IV.

I (along with friends) disliked some things in V, and IV is just our prefered game.

Civ4>civ5

I hear Civ V was an overall improvement, but some people did still prefer Civ IV, as it is with almost any game.

Civ IV is one of the best Civ. Civ V is good, but Civ IV is great.

Civ V God and Kings would be a good choice, with spy and religion improvements. I've not played the 4th but I don't like the ideas of stacked units

Or there's this: http://www.amazon.com/gp/product/B00AMKTR48/

• Sid Meier's Civilization V: Game of the Year Edition
• Sid Meier's Civilization V: Gods and Kings
• Sid Meiers Civilization IV: The Complete Edition
• The Stronghold Collection

All for $19.99.

It's obviously more expensive, but it's still a decent deal, particularly for those who either don't own Civ V or don't own the GOTY edition.

Civ IV still looks pretty good, and is generally better than V.

IMO

get CIV 5 + CIV 5 GnK, preety much good game:D

Well you've played both 3 and 5, which of those do you prefer? If the answer is 3 probably go with 4, if the answer is 5 get G&K.

Gods&Kings