GA pistons, with a nod to the TBM.
These days (in MSFS) I find myself spending the majority of my time in the Mooney M20R. Steam gauges, engine management array, nice autopilot, fast piston single… what more can you ask for? Once you get used to 200+ mph ground speed it is difficult to go back to a slow aircraft.
That being said, for short flights (less than one hour) I still fly the C172 “Classic” which is great fun. Plus, it feels “normal” to me because the majority of my real-world hours are in a C172. It’s like pulling on your favorite pair of boots…
If the Flight Sim world had a steam gauge C182 I’d likely be in that a lot. I fly the 182 Turbo from Carenado, but I’m not a huge fan. If a Third Party developer releases a decent G5 or G6 Cirrus I’d fly that quite a bit I’m sure… glass cockpit and all.
For long hauls I really enjoy the TBM. It is so fast, and flies so high you can pick up a good tailwind for one of the legs and sometimes hit 400 mph ground speed. That’s pretty impressive. Can’t wait until they get the engine logic fixed; having to pull back power as you gain altitude is completely backwards. I like the short field ability too in such a fast aircraft. Unlike a jet, you can land the TBM on a pretty short runway.