You might want to check out this site...
I have a Minimed, because it's kind of the "Toyota/Honda" type model...very reliable, good support (not perfect, though!), and they tend to be pretty forward-thinking and do the best job with new features, even if they aren't necessarily the first to do it. Most insurance companies like working with them, too.
Lots of people also like the Deltec Cozmo. They have some nifty features that the Minimed doesn't have quite yet, but insurance companies don't cover them as much and I hear their support is not as good.
Those are the two top ones...there are several more but I've never heard good things about them.
Type 1 for 24 years, happy pumper for 5