While I've always appreciated the M-70, I've never owned one, although I do have a M-54 in .270. I'm not sure why this is, but I suspect it is because the gun shop I hung out in when I was a youngster was very pro Remington and very anti Winchester. When I got into shooting in the '60s there was much hard feelings across the industry towards Winchester for the post '64 M-70s .
Despite that, a M-70 Super-grade in .30/06 was the "ideal" I wanted in a hunting rifle and my Brno ZG-47 in .30/06 might be just a bit better due to the position of the safety. While I am not at all sure that a safety on the bolt is the best idea anyway, the wing safety of the M-70 did have the correct look. I didn't realize what a pain in the ass it could be with a low mounted scope until I hunted with one. I finally gave up on the safety all together and when I found it necessary to carry the rifle with a round in the chamber I simply lifted the bolt handle.
My old Remington M-17 Enfield was the correct blend, controlled round feed, with a safety on the right side of the receiver. For years this club was my go to rifle, it was tough and accurate, much more accurate than my 1903 Springfield, but it was heavy and far from beautiful. IMHO, Remington should have kept the M-30S (essentially a 1917 Enfield sporter) in production as their premier hunting rifle, modernized with a redesigned stock, and an adjustable trigger. To my way of thinking, #### on closing is no disadvantage.
As a hunting rifle, I think the M-70 (pre '64 and newer Classic) has it all over the M-700 due to the controlled round feed feature and the flat bedding surface of a double bridge Mauser. Remington has proven itself on the target range, and my most accurate rifles have been the custom 700s I've owned in recent years. I keep hearing people say how the Remington extractor is bullet proof and can't fail, but I've worn out two, a .30/06 M-700 and a .243 M-7, that repeatedly slipped past the cartridge rims. I used to think that the installation of a Sako extractor on a 700's bolt face was the best solution, but Guntech has convinced me this practice is unsound.