Is there any way at all that you can go shoot both?
Honestly we can't give you a precise opinion. A lot depends on felt recoil. Tom may think a 300 win mag doesn't kick hardly at all while Dick may think a .22 LR knocks his shoulder off while Harry thinks the .308 is just right. Example: I wouldn't think a 7mm-08 kicks hard. I had a student tell me it felt like his shoulder was comming off.
I would seriously try to go shoot both if you have the time and option. It's the only way to know for sure.