For me, Sonic Adventure holds a special place in my heart, and I absolutely love how broken it is and love to laugh at the acting. I play through it every couple of years or so. In 2000 or so, my dad's friend won a contest to have a backyard concert by the deftones, so like, right before they blew up to be famous. Naturally, everyone in the world was invited including me and my brother. The guy's son michael and my brother were the same age and spent the afternoon playing south park on the n64 in michael's room, but because I was the dumb little sister, he wouldn't even let me spectate. Michael felt bad for me so he plopped me down in the living room in front of their big screen (crt lol) and the newest hottest game console on the market: the dreamcast.
At the time, I was very anti-3D games. In part because I was poor and we only had an NES and I had a hand me down Super, but mostly because the games looked horrible in their blurry blockiness compared to the perfect 2d art of the snes. But then I saw that orange swirl for the first time on a giant tv, and i was completely blown away by the opening cinematic of Sonic Adventure. The quality of the video itself was miles beyond what I'd seen on playstation, and it was REAL music, and rock at that! I was hooked from that moment on.
I got my own dreamcast in 2001 and it came with sonic adventure, sonic shuffle, and a demo for sonic adventure 2, and I picked up rayman 2 with it. Those are still my two favorite Dreamcast games. In particular, I love the quality of Rayman. The dreamcast version is the best in my opinion. It really shows what this system could do, especially in comparison to the ps1 and 64 versions.