I am probably going to be purchasing this one very soon: All-Clad Deluxe Slow Cooker | Williams-Sonoma
I have yet to find a bad one, but I'm sticking with major brands, so that could be part of it.
Right now I have a pretty cool Hamilton Beach "Stay Or Go" 6 qt cooker, the brushed stainless and black ceramic model. It's a pretty standard size, and I like the oval shape. It just seems to fit cuts of meat better than the round type. It also has latches on the sides to hold the lid in place if you're taking it to a party or something, handles to carry it so you don't burn yourself, and a rubber (I think) gasket on the lid so it seals really well.
Oh, and if I were looking to buy a new one, I would make sure it had:
1) removeable stoneware (much easier cleaning)
2) a switch for high, low and warm
3) a brand you've heard of before (crappy brands can have some serious hot spots)
Craigslist $10, works everytime.
"Go For Broke"
Fat Kine-230/24% @ 6'2"
My Farberware crockpot is 34 years old and still going strong...
No kidding, I got it in 1978.
I bought a George Foreman one because it was the cheapest thing at K-Mart. It's only small (I cook for one), laughably simple, but has never let me down. I would have thought something as uncomplicated as a slow cooker would be hard to make wrong?
I have the simplest tastes. I am always satisfied with the best.