I use M-Audio BX5a Deluxe Powered Studio Reference Monitors with foam monitor isolation pads atop home made, high mass speaker stands. Will post a pic one day. The stands are made out of abs pipe (filled with sand for mass), mdf board, and closed cell thin sheet foam. One is on a floor stand and the other i made to go atop my mix desk (its an off center mix desk so it needed to be this way). Both are custom measured so the tweeters are perfectly at MY ear level.
Sorry, I guess this poll is about speakers,not the damn stands!
Oh and for a difference source/perspective, I listen through AKG headphones and finally on a variety of auxilary stereo equipment including: standard computer speakers, home stereo with sub woofer, car stereo, iPod with headphones, 1970's Morantz Stereo Amp through 1970's "Realistic" brand bookshelf speakers, and a crappy little boom box. If the mix translates to all those sources, I've done my job well!