Can't say I am a huge aviation enthusiast, but as with railways, I love learning how stuff works
My first ever flight was on my own now just a shade over 2 years ago

hock: on a Bombardier Q400 Dash 8, from Birmingham to Stuttgart. Left 2 hours late, by this time in the dark and on a runway that best resembled a lake! Maybe not the best ever first experience, but alas, I was unphased!
Have to say, as a prop craft, I was impressed. Smaller than I expected internally but wouldn't have wanted the huge 10 across jobs that do the longer haul stuff as a first flight experience.
The return was the same plane type too and a lot quieter in terms of the plane was probably only half full at best, though we experienced a heck of a lot of turbulence. Didn't feel much different to going over crests fast in a car though...just less predictable!
Took a further return flight the same year with family from Manchester to Hamburg (Miniatur Wunderland is well worth a visit, by the way, we were there for hours!) which was on a jet plane. Can't remember at the moment more than it being an Embraer, but the reg of the one coming back was D-ACPC (I have a photo of it, before anyone asks!) - a Lufthansa operated craft. Also quite nice but somewhat noisier than the prop Dash 8!