I was a Sega kid. Genesis and Dreamcast are among my favorite consoles. Dreamcast felt way ahead of its time and had some really great games. Soul Calibur and Shenmue blew my mind. I still remember where I was when I played them for the first time, just left a huge impression. Skies of Arcadia is one of my favorite RPGs to this day and wish Sega would bring it back. Power Stone was a blast with buddies.
Sega Genesis was my first console and I think it aged the best of all old consoles. I played Earthion this year and that game was made on the native hardware and also released digitally on modern consoles. Streets of Rage games, Sonic, Phantasy Star, Earthworm Jim, Ristar, Dynamite Headdy, Alien Soldier, Gunstar Heroes, Toejam and Earl, and many others don't feel dated at all to me.
After Sega got out of the hardware business I've been all about PlayStation and have owned every Sony console since including the portable ones. So if Sega was my first love, Sony PlayStation is like my long time marriage lol