I must be one of those rare breed that actually enjoys Victoria II. I felt like it fixed a lot of issues from the first one, although the more indirect control over the economy makes economic management a nightmare at times (although this is not necessarily unrealistic). The use of "Artisans" in particular helps alleviate the problems you find when world industrial production hasn't caught up to your plans (like supplying artillery). It would be tremendously useful in Grand Campaign games, where you don't have that prime mover in England to create machine parts for the rest of the world. Most of my imported Vicky: Rev games wind up very technologically stagnant because nobody starts to industrialize for a long time. Unfortunately, there's still no working converter in place yet.
I've been playing around with HoI3, but haven't actually gotten into a real war yet. I had a game going as Australia that's into 1940, but I abandoned it as it was a bit boring. I have two games, Germany and Japan, that are into 1937 but haven't yet gone to war. The level of detail is a bit staggering, as is having to deal with real logistics issues now instead of abstracted "depots".
One of the odd things is that I frequently see people on the Paradox forums complain that HoI3 is
less concerned with geopolitics than HoI2, which seems completely backwards to me. The way that intelligence/diplomacy works in HoI3 allows a ton more "behind the scenes" kind of manuevers. In my own Japan game, I noticed that the Octobrist party (Social Conservative) actually still had a fair amount of clout in the Soviet Union, so I began pumping spies into the USSR to support it (since Japan is still under the Seiyukai). Within a few months, intel shows that the popularity of the Communist Party has fragmented, with the Trotskyites and Leninists having nearly 20% each, and the Octobrists at 25%, while the Communists have only about 29%. I'm jazzed at the prospect of de-Communizing the Soviets to reduce the specter of a Soviet threat in Manchuria.
Fomenting a foreign-supported White Counter-revolution in the USSR? That's something I never could do in HoI2.
And I have some mad love for Crusader Kings, warts and all. I'm currently working on bringing one of the would-be successors to the old CK Wiki up to snuff. The more I dig into the game mechanics, the more I fall in love with this game.
EU3 took me a while to warm up to, but with each add-on expansion I've gotten to liking it more. Still haven't gotten Heir to the Throne or Divine Wind, partly because the converters I was working with didn't support them yet. And I have a serious thing about playing Grand Campaign games.
The only Paradox title I've been really disappointed with was EU: Rome. I mean, seriously? What the hell was that all about? It felt about as related to the EU franchise as SimCity: Societies did to SimCity.