In reply to The Great Pretender: I've got old CM lasers (OK), old DMM/Excalibur with rachet handles (crappy - fine for belays), CAMP titaniums (good for glaciers and being fat can go safely in old normal sized holes), and BDs both with and without the wee handle. Out of them clearly the BDs with the handles are good.
I've used friends' Grivel 360s and bent the handle of one whilst trying to get it out when water flowing down the ice had started to freeze over the screw - had to chip away some ice first, so a bit crappy in that respect. I've also used the new CM lasers with the twiddly handle and it worked fine for me despite what some reviews say, although I wear thin gloves. I've also used the new DMM screws that go in very nice but you miss the little handle of the BD screws.
Over all anyone who climbs ice regularly shouldn't worry about which bite best etc because in my experience sooner or later you need to sharpen the screws and then are all much of muchness and depends on your skill at sharpening. If you only climb a few fat icefalls once a year perhaps its worth thinking about, but anyone who uses their screws regularly will hit rock sooner or later.
So BD expresses basically will be my choice for runners but there's not as much in it between different brands as some would have you believe. For belays it doesn't matter so much - as you can even use two hands if you want, i'd get whatever 22 cms one you find cheap.