I've been happy with the 3 blade Paderno, nothing broken, here is previous thread on brands. http://forum.lowcarber.org/showthread.php?t=457882
I used the vegette at a friends...that could be a pain with stiff hands. Had to push at all times, and more waste. And no, a food processor won't spiralizer. Some types have extra shredding and slicing blades, I can do cabbage into coleslaw in mine, but have to get the vegetable into the feed tube first. You can make thin rounds with a zucchini, not much else.
Other options are the julienne peeler and mandoline...again, would likely be harder with stiff hands.