I've played five games of Civ V BNW now, and unfortunately I've arrived at the same conclusion for Civ V G&K as well as vanilla - this isn't an interesting strategy / empire building / 4X game, this is a game about filling bars to fill more bars.
Just take a look at the game mechanics.
Science? Get numbers to fill up a bar, get bigger numbers to fill up more bars.
Unit XP? Get numbers to fill up a bar, get bigger numbers to fill up more bars.
Culture? Get numbers to fill up a bar, get bigger numbers to fill up more bars.
Religion? Get numbers to fill up a bar, get bigger numbers to fill up more bars.
Espionage? Get numbers to fill up a bar, get bigger numbers to fill up more bars.
There was much more variety in Civ 4 for example.
Just take a look at the game mechanics.
Science? Get numbers to fill up a bar, get bigger numbers to fill up more bars.
Unit XP? Get numbers to fill up a bar, get bigger numbers to fill up more bars.
Culture? Get numbers to fill up a bar, get bigger numbers to fill up more bars.
Religion? Get numbers to fill up a bar, get bigger numbers to fill up more bars.
Espionage? Get numbers to fill up a bar, get bigger numbers to fill up more bars.
There was much more variety in Civ 4 for example.