On my page you’ll find mostly SSTO spaceplanes and surface rovers, but I actually play the game sometimes instead of just building so there’s all kinds of stuff.

My craft are pretty light part count wise. Relatively at least. I try to eliminate any aesthetic or structural parts from my builds that I can without making them ugly.
I dislike clipping animated parts and I never make you clip the camera into the vehicle to click on something in flight

My rovers are designed with driving controls separated from flight controls so that SAS doesn’t interfere with driving.

My SSTOs are about as optimised as you’re likely to find while still looking like a plausible aircraft.