I was poking around on the internet the other day trying to get information on incubators and I came across a test done to compare the HovaBator and Little Giant. The site is:
Not alot of difference, however, I have heard that a turner made for the Hova will not fit in the LG without some tweaking, but the LG turner will fit in the Hova. That tells me that the Hovabator is probably a bit larger. I do think it's taller as well, but not sure about that.
I have one of each of those incubators. I use them both. Both hold great heat. Lid fits on hova a little better than giant. I have turners in both of them which work perfectly. Golly,,,I can't think of any other difference really. Let me know if you have specific questions about either one and i will be glad to answer. Julie