I've noticed lately that I really enjoy the complex addons out there, which have full systems and are as close as possible in functionality to the real thing. (Notably the Russian types.)

As is apparent here, I'm wondering what degrees of complexity we enjoy when we are using our simulators!
Obviously, as in real life, something like a Piper Cub or a C-172 is going to have pretty simple systems involved, so if you wish, post your aircraft type below.

Thanks for your participation. Please feel free to post below what complexity level you enjoy the most, and if you wish, how that relates to the aircraft types you find yourself in the most.

EDIT: I suppose I'll add my two cents in. I generally try to go for the complex, but very unique stuff. I'm a big fan of Russian aviation (no idea why) and I tend to gravitate toward Russian or Eastern European manufactured designs. With this in mind, I have a tendency to reach for the regional or short to mid range turboprops and jetliners. In addition, while I enjoy the liner types, I am still very averse to those computer system FMC things that can be found in pretty much any Boeing and Airbus plane. I like my earlier 1960 and 70s designs without the computer stuff! I'll make an exception to GPS equipment though. 
Notable types that I enjoy include the Antonov An-24, Tupolev Tu-134 & 154, and the Yakovlev Yak-40.

-Sean 

I use Flight Simulator because I won't be able in real life to take a real aircraft and operate it. I won't have enough money for this, and even with the money there are a lot of aircrafts that I would like to pilot but that are not available, like military or retired aircrafts.

So I want the simulator to show me as precisely as possible how the aircraft works in real life. The performance, the systems, the constraints etc...

I do both full simulation, and the press the button and go method. I used to be really big into R/C aircraft, and I've found my sim to be just as thrilling, without the expense. I usually spend more flying time outside the aircraft, admiring the scenery, and pulling maneuvers that make me say  "Dang, I couldn't do that again if I tried!"

When I'm going to do the realism thing, I normally go for the single engine GA. If I just want to rip it up, I jump into and F-16 or the like.

I learned to fly 44 years ago in a Cessna 150, owned a Piper Tri-Pacer until the cost of children made me sell my toys.  My dad was an American Airlines check pilot (use to play in his "office" mostly 727's) and during Nam, I had the privilege to work on F-4 simulators and later F-16's. When I turn this thing on it depends on my attitude, low & slow, fast & furious or haulin' revenue. It's all great.   

Having spent the better part of my life flying light aircraft, that's my primary interest with Flight Sim but, every once in a while, I get that 'Walter Mitty' thing and try on some of the exotic old warbirds and dream the 'impossible' dreams. 

Never been a fan of the complicated systems in FS like PMDG and such. I rather fly an aircraft with 'simple' controls and systems. Most likely a single or twin engine piston prop. Biggest thing I have flown in the past year is MAAM's DC-3. Every switch in that plane works, but it's simple to use and if you want just press CTRL-E to start her up.

Carlo

The pleasure of flight simulation is the ability to stimulate the imagination without destroying the pocketbook or life and limb.  Personally, my choice is a WW II single-engine British aircraft that can be flown and landed in a Normandy farm field with some degree of realism and the satisfaction of feeling marginally capable (despite the fact that it took me a year or two before even one landing out of three was not a fatal crash.)