Sidi for me as well. Each pair has (so far) lasted an average of 8 years hard use, compared to 1 or 2 years each for the "lesser" brands I've used.
Currently have a three year old pair of Dragons (MTB) and five year old Energy (road) shoes for the summer and a two year old pair of Diablo boots for snug toed happiness during the winter. I do not anticipate buying another pair for a few years yet.
'92 Breezer Storm, '92 Breezer Sky, '93 Merlin Mountain, '94 Ibis Mojo, '96 Breezer Ignaz X, '97 (or is it '98?) Breezer Twister, Sunn Team Ti road bike
***Proud to be ordinary***