I have experience with both, so I thought I will add my 2 cents here. 845 is liquid wax, so it is very easy to apply and buff off. Literally very very easy.
476 is hard wax, so it requires a lot of elbow grease to apply and buff off, even more so in colder months.
In terms of durability, 845 will give 3+ months if washed properly, and 476 will do more than 6+ months. However, usually people love applying wax to their rides more often than 6 months.
I prefer 845 due to its ease of application, and keep topping it as desired.