I have at least one of all three.
Prefer the Mauser-style actions of the of the Ruger & Win best. This includes the simple trigger/sear system, unlike Remington's 'box' fire-control assembly with set screws. I make the same pull on all 3. Just give me my favorite stone and polishing wheel.
Dislike the Ruger integral bases. Prefer the option of lengthening the distance between rings with extended bases(plusses for the Rem & Win). I always spread them out as far as possible to increase holding strength. Also, since two of my rifles are compacts it's nice to get the scope forward to compensate for the loss in stock length.
Dislike the 'click' the Winchester's safety makes when moving into fire position. I can control the
volume on the Remingtons and Ruger. These can be rode into fire position very quitely. The Winchester has a non-controlable 'snap'. Not good when you're within 25yds of your game.
When firing from a benchrest position, I got in the habit of grabbing the fired round with my left hand while slowly pulling the bolt with my right. I would then place the empty cartridge into my reloader box. When ejecting from the Winchester I occasionally end up flipping the fired case back into the action with it facing the wrong direction. As I go to fish it out I end up pushing it towards the chamber. It then becomes even harder to get it out. This never happens with the Ruger or Remingtons.
After all is said, if I had to be stranded on a deserted island for 10 years and knew I'd be fighting cannibals with no chance of replacing broken parts, my choice would need the be the simplist, most durable design. It would be a toss-up between the Winchester and the Ruger.
I voted for the M70 mainly because it represents my #1(favorite) rifle. I also like the classic looks of the Mouser-styles better. Too me, the Remingtons just look and feel too
aerodinamic. It's kinda like the semi-trucks you see on the road. The older ones have that classic squared look, while the newer ones look more like the Space Shuttle. These are the ones nicknamed "Ant-eaters". The Rem 700 could be considered the 'ant-eater' of modern rifles.