I love the new Winchester more than the Kimber, simply because I feel the Winny is a much more durably built rifle and is more likely to be a shooter. The Winchester is a good design, everything works well and they shoot well. The last 3 that I had to the range were all shooting under an inch with Federal Powershocks. Kimbers can really be hit or miss, some shoot phenomenally well, but most I have had in hand (including those of friends and colleagues) are nothing to get excited about. Kimbers are prone to one particular breakdown, that being the bolt retaining pin shearing off. Some owners have found a few problems with the rifle firing accidentally when taken off of safe. I never experienced this, but I know two fellows that were a little rattled by this event with their own rifles. From a superficial view, I prefer the appearance of the 70 over the Kimbers. I just don't find any Kimber to have an attractive finish. They look cheap to me. Even their higher end, wood stocked rifles look like something from a dollar store.
In praise of the Kimber, it's a fair bit lighter, straight from the rack. They have a nice feel when shouldered despite the light weight. Kimber bottom metal, or at least the floor plate release being inside the trigger guard. As much as I love the Winchester, I hate that the floorplate release location. I have bumped it on a branch in the bush or slid too far forwards over my pack when preparing for a shot, depressing the switch and having the floor plate burst open. I also like the blind magazine on the lightweight Kimber models.
Everyone is going to be extremely opinionated as we are all looking for something different from our rifles. Which one do you like?