We used ABF, they charged by the amount of space we used. We packed it REALLY tight, and REALLY high. It ended up being cheaper than some of the other options for us, but we really had to pack it properly. Everything arrived in fantastic shape, so we were satisfied. Good luck, it is very expensive!
we used ABF as well and i totally think it's a good way to go you pay by the amount of space you use, so you just pack everything as tight(and high) as possible then they tell you how much it'll be then it took like a week to get here(ca to co) .. i can't quite remember the price but it was around 1,000