I dunno, I'm kinda ambivalent about my hunting rifles. They all work, and I'm not particularly attached to any of them. I 'bond' a lot more closely with my varmint guns that see thousands of rounds per year.
Big game guns just don't inspire me to play with them much - accuracy isn't nearly as important, 2-3" is fine. So I don't spend a lot of time tinkering with them, developing loads or practising. They recoil a lot more so aren't as fun for extended sessions either. I view them as much more utilitarian pieces than 'fun' guns.
Still, if forced to choose, I'd go with my model 70 7mm and my 45-70. I have a 7600 in 30-06 that I like, and would never sell but still rarely use - usually pre-empting with the 7mm. Maybe a grand total of 20 rounds through it in the past 20 years. It's absolutely mint and a gorgeous gun, but I hardly ever use it.