I once owned a Quadra 650 myself. And actually, it was a IIvx prior to my paying US$1,000 to upgrade to a Q650 logic board. I loved that machine so much I brought it to Japan when I moved here in 1994. I ultimately sold it in 1997 for US$1,200 to my company, as they wanted a reliable fax server that would run faithfully 24/7 -- which it still does today.
Nevertheless, I would still say the nod should go to the IIci because it's pretty much the same "concept" of desktop, but in a smaller form factor. And while I am American by birth, I've come to admire the Japanese appreciation for the smaller, more compact things of live. Give me a lot of power in a small attractive case, I say! That's why I like the SE/30 so much. It's the smallest of the Mac line, and the most upgradeable too -- even if it can't run OS X or other "modern" software apps.