Picking up my trailer from LAX to IN in mid-December

I routinely push 700mi legs with my wife. Sucks, but we split it and it works. This time, I'm with my brother. We both have several thousand miles of towing experience. I'm from New Hampshire. I know how to drive in snow.

General consensus is I40 furthest north. Preferably I10. The mileage difference is negligible, I'll go I10 and keep it safe. On the way home, I'm expecting to take at least 4 maybe 5-6 days on the road. I have days built in to allow for the unforseen...good advice, thanks for the tips.