I often have that internal debate of civ 4 vs civ 5. Civ 4, if your the civfanatic like most of us, is the better game. I though gods and kings would cater to the hardcore crowd but itd ultimately the same. Which isnt bad. I dont wana make this a lets flame civ five thread. It will just never capture me like four did. Religion in five is fun but its jst mpre or less a series of bonuses that spreads itself around.
Which is surely what it was in Civ IV... Indeed you can essentially replicate the Civ IV system by using the beliefs that give happiness from temples and from each converted city in your empire. Civ V still doesn't surpass the level of detail in many aspects of Civ IV, but religion is an area where Civ V is unequivocally the more developed game.
Espionage is cool but extremely limited.
I'm not even sure this is fair. You can't poison water supplies or foment rebellion, but most of the rest is there - all I'd really like to see return is the ability to sabotage production. But in Civ V espionage is more than just a set of abilities on a spy unit - what you do isn't as varied, but when/what you do it to is a more complex set of decisions forced by the limitations on spy numbers, particularly in the Renaissance and Industrial eras - and not only do you have to choose between targeting different civs, and which ones to target, you usually have upwards of a dozen city-states that are relevant concerns - and yes, there's intrigue, which adds a whole new dimension since you no longer want to focus just on civs that are immediate rivals or technological superiors, if there's a chance that you can obtain information you can use diplomatically by choosing less obvious targets. Espionage, unlike religion, works too differently from Civ IV espionage to be able to state that it's simplified in comparison.
I jst found it disappointing how little religion reallly effects anything. Diplomacy is hardly effected at all religion is really just another set of bonuses. Which works for this i spose but i was just hoping for it to hve more impact on diplomacy like it did historically.
Historically many things affected diplomacy - to Elizabethan England, for example, Mauritania and the Ottoman Empire were key allies against Catholic powers, as powerful states with valuable trade interests (and yes, certainly who could be bargained with on the basis that both Protestants and Muslims considered Catholics heretics, but this is a level of detail that can't really be incorporated into Civ games - "our religion has more similar tenets to yours than to theirs"). Civ V diplomacy reflects this better than Civ IV, where you could immediately trace the effect that any given modifier was having on your relations.
Religion is a key modifier in Civ V - it's one of the few ways of getting a strong positive that remains strong through most of the game (since the modifier persists for as long as two civs share a majority religion) - and positive modifiers are still relatively hard to come by (except for the minor "we have an embassy" and "no contested borders" effects) and negative ones are frequently strong. It's just harder to say "This civ declared war because it doesn't like our religion" or "this civ is my most loyal ally because we are defenders of the faith". Though it happens: in my first full G&K game Mongolia was the only civ to share my religion, and was a completely dependable ally throughout the game (though in vanilla too Genghis is usually trustworthy if he's on your side), and my first major rift with eventual major rival Siam came when I spread my religion to one of their cities while they were trying to spread their own.
Another modifier or two wouldn't hurt - say, a negative with other civs that share your religion if you go to war with or denounce another civ with the same religion, and a corresponding positive if you do the same to a civ that has a rival religion - but religion certainly has more than a trivial effect on diplomacy.
I think Civ 5 + G&K is superior to Civ 4 + Warlords. We'll see whether it ever catches up to BTS or not (now, I can't play Civ 4 anymore, I can't go back from certain things in Civ 5, but I do think Civ 4 with BTS was a superior overall product to Civ 5 vanilla and probably a bit better for its time than Civ 5 + G&K)
I think "better for its time" is a key qualifier. I see a lot of comparisons from Civ V naysayers with games like the Total War series, Distant Worlds, Europa Imperialis... Games which all have far more detail and to a large extent more depth than any incarnation of Civ, not just Civ V (and, come to that, if you want to complain about Civ V turn times or lousy combat AI, you clearly haven't played Shogun 2). It needs to be borne in mind that any incarnation of the Civ series is ultimately based on a 1990 game engine, and it has never attempted to add a level of detail that would make it feel less like Civ and more like one of these games.