I've got a Shiny Gyarados. Yes, it's red. All my friends hate me for having it and not trading! I've got a shiny Linoone, Swellow, and Tentacool. Yeah, it's pretty obvious that al my shinies are super-common regular Pokemon. I really want a Shiny Charizard. I've been soft-resetting for a Yellow Charmander forever! No luck so far...
My rarest non-shiny? Probably my Lugia I got from XD. It's currently lv79, but I'm trying to get it to Lv100 with my Lucky Egg.
BTW, I've got every Pokemon (from me) except Ho-Oh, Entei (gonna catch soon), Jirachi, Deoxys, Mew, or Celebi. I caught one Feebas (on Ruby, it wasn't hard) and now all my friend's Milotics and Feebases are offspring of that one. Same goes for my Bagon. My friends are lazy.