I've tried lots of different computers over the years:
several Cateyes, the crappy mec one, specialized, shimano and this year I'm gonna try Vetta if the distributor can get their **** together for a few moments.
Best so far= specialized speedzone elite. OK price (~100 at the time) lots of features with good layout and reliable.
I'm keen to try the vetta though, I like the look of it... especially the smart backlight. I'm trying the corded version to cut out interference from LED lights.