I've been a space geek since the Apollo days. I was 8 years old in 1968. I wrote letters to all of the Apollo astronauts and asked them for autographed headshots. They all followed through, including Neil Armstrong, Buzz Aldrin, and Mike Collins.
I built a polystyrene model of a Saturn V rocket with Apollo spacecraft attached. It was 3 feet long. For a school science project in 6th grade, I used chicken wire, plaster, and flat grey spray paint to build a model of the Apollo 14 landing site. I used the lunar module from the Saturn V model to finish off the model of the landing site.
I remember where I was when the Challenger space shuttle blew up. I was driving home from the nearby university I attended. I was almost home. I was halfway into completing a right turn from US highway 63 onto Elm Street in Baldwin, WI, when the announcer during the live radiocast on the St. Paul/Minneapolis AM station that I was listening to said, "The rocket has exploded. It's in a million pieces and there is a huge fireball."
To answer your question, I'd say the SpaceX Dragon 2 capsule is the most-advanced and most technological space vehicle in current use. I'm excited that the Dragon capsule can be used and reused for a variety of missions, both manned and unmanned and pressurized and depressurized.
Commercial aircraft flown in: B712 B722 B732 B734 B737 B738 B741 B742 B744 B752 B753 B762 B772 A310 A318 A319 A320 A321 DC91 DC93 DC94 DC1030 DC1040 F100 MD82 MD83 A223 CR2 CR7 E175