Georgiapea,
I have used both the Little Giant and Hova-Bator. Both have their pros and cons, personally I preferred using the Hovabator above the Little Giant.
There are however various Hovabators available, and it is sometimes hard to choose the right one. It all of coarse depends on your needs.
If you are looking for the best Hovabator egg incubator, I suggest you buy the GQF Model 1588 with Auto Turner 1610 (If you are planning on incubating chicken eggs). This incubator and turner combination should cost around $125.00 + shipping new, on e-bay it can vary. It has a highly accurate electronic thermostat and fan, which will ensure better hatch rates.
If you are looking for something more budget, you can buy the GQF Model 1583 egg incubator with auto egg turner 1610. This should cost around $100.00 + shipping new. Once again, prices may vary on e-bay.
A word of warning when buying second hand egg incubators. Unless they are very well sterilized, you WILL encounter problems with your hatch rates due to possible bacteria infections that may be existent. When you buy them new, you are at least assured that the incubator is sterile and you will be the first person to use it. It only takes one bacteria particle to ruin an entire batch of eggs and many hours of hard work.
Good luck!
Surehatch