What I hate most of all is:
-The slower pace of the game.
-Road maintenance being annoying as hell, which also reduces the speed of the game since you're never going to be bothered making strategically important roads for military use.
- Culture being all messed up. Do cities even flip anymore? It all just seems weird.
- Social Policies having their price increased by more cities. Surely they could just make it so that a city would just increase the price by an amount that could be later offset by buildings in that city itself? Like... make each new city add 5 culture or something. Now I just don't feel like expanding at all... which is one of my favourite things in Civ.
I like the game overall. It has some flaws that I belive need to be, and will be, addressed in patches / expansion packs. The key thing that most of the critique seems to do is compare Civ V to Civ IV. Civ V was not desiged to be Civ IV. If you like the Civ IV mechanics so well, play it. The game is Civ V vanilla though. It doesn't currently have all of the features the game designers intended, but it will become a more robust game as expansion packs are released.
I agree with the last bullet in the quote. You should be able to win with any victory condition no matter what your style. If you want to win a cultural victory, you really cannot expand beyond about three cities. I prefer larger empires, so cultural victories are mostly out of the question.
I also don't think the AI is particularly effective. I play up through emperor, and I really haven't had an AI compete with me for a science victory or diplomatic victory. Moreover, I usually prefer to get my empire to about six or seven cities before going to war, and the AI obligies very well. It isn't as nearly as aggressive as it should be nor does it really try to win.
On the other hand, I love the combat system. Again, I don't think the AI is particulary effective at employing it, but the system is great. Warfare requires much more planning and unit coordination than in previous versions.
Each civ is given its own passive benefits. Some lend themselves to a particular type of play. For example, France and Siam are perfect for cultural games, yet they seem to expand like every other civ without focus. India is great for space race victories, but I've never been challenged by them during a space race attempt.
There are some mechanical issues, but the AI needs the biggest improvements. It looks like the upcoming patch will address some AI issues and also make the diplomatic system more robust.