When I say remixes, I don't mean somebody's cover of somebody else's song. I mean somebody's remake of one of their own songs. Here are a few remixes that I think are as good as or even better than the originals:
"I Got 5 On It (Bay Ballas Vocal Remix)"-The Luniz f/ Dru Down, Richie Rich, E-40, Shock G, Spice 1, and Michael Marshall (remix of "I Got 5 On It" by The Luniz)
"Bootylicious (Rockwilder Remix)"-Destiny's Child f/ Missy "Misdemeanor" Elliott (remix of "Bootylicious" by Destiny's Child)
"In My Bed (So So Def Remix)"-Dru Hill f/ Jermaine Dupri and Da Brat (remix of "In My Bed" by Dru Hill)
"It Ain't My Fault II"-Silkk The Shocker f/ Mystikal (remix of "It Ain't My Fault" by Silkk The Shocker f/ Mystikal)
"You Know How We Do It (Remix)"-Ice Cube (remix of "You Know How We Do It" by Ice Cube)
"Put It On Me (Remix)"-Ja Rule f/ Vita and Lil' Mo (remix of "Put It On Me" by Ja Rule f/ Vita)
"Sons...I Got The Hook-Up (R&B)"-Sons Of Funk (remix of "I Got The Hook-Up!" by Master P f/ Sons Of Funk)
"MR. '99"-Silkk The Shocker (remix of "MR." by Silkk The Shocker
"The Ave. (Remix)"-Andre Nickatina (remix of "The Ave." by Dre Dog (he later changed his name to Andre Nickatina))
"Cherybananapumpkinpie"-Andre Nickatina (remix of "Crack Raider Razor" by Andre Nickatina)
"Live @ The Daiquiri Factory"-Andre Nickatina (remixes both "Mother" and "Fears Of A Coke Lord" by Andre Nickatina)
...that's all I can think of now. How about you guys?