Hi Tahu,
First of all, I don't mean to rain on your thoughts, but I just want to offer some of mine for what you think they're worth. If they help you, that's great.
I don't know anything about the Savage range, but I own two Sako's. Not sure where you're located, but Sako's in most places I have seen are in the pricey end of the rifles on offer. I have two Sako 75's, one in .223 in the Sako Hunter model, and the other in .308 which is the Varmint version. I love both of them, as they have never failed me and both are highly accurate. I don't like the A7 much, but that's just my own thoughts on the A7's I've seen and handled. Still, the A7 is a lot cheaper than the other Sako's.
My Dad owned a Sako 85 briefly this year, and it was a disappointment compared to the 75. The magazine has a new release catch, which the salesman said was because too many shooters were dropping the 75 magazines in the dirt and snow when they went to change magazines. I had to stop myself laughing! Was he serious??????? I can do magazine changes with both my Sako 75's with one hand and have never come close to dropping them. The Sako 85 has an inferior magazine catch in my opinion. My Dad only owned his Sako 85 for a few days, because he found out that he couldn't load anything with longer OAL's and he took it back without firing a shot from it. How many of us have ever thought to check the OAL's of our loads and whether they would fit in a model of a rifle where they loaded in the previous model of the same brand? Dad managed to find a brand new Sako 75 model in .223 and he's very happy with it.
It seems to be that Sako is going down the road of making their products on the cheap, and I think the A7 and the Sako 85 are good examples of that. While the Sako 85 is not cheap, you're paying top dollar for a product that is not as good as previous Sako's. As a Sako owner, I'm disappointed about that. A great product going down the toilet in my opinion. I hope they turn their philosophy around and start producing products like they used to.
I've just bought my Dad and I a current model Winchester Featherweight in 7mm08, and we're both very impressed with them. I bought two of these for nearly the same price as buying one Sako 85! I'm not sure what Winchester Featherweights are worth in your part of the world, but I'd recommend you have a look at one. The finish and features on both of ours are sensation, and even though we're working on finding the best hand loads for them, their accuracy is excellent. I wouldn't buy another current model Sako after buying these new Winchester models. I just wish they would bring one out in .223.
If you're looking for an all weather model, Winchester has a Model 70 all Weather stainless steel model, which is in both 270 and 270WSM. I haven't seen or heard anything about them, but can only think they'd be worth a look based on my own Featherweight.
As far as the 270 and 270WSM are concerned, i favour the 270. My Dad has owned two of them, and they were both excellent.
Are you planning to reload your own or buy factory loads? I have heard of problems with guys who load their own, but I'm sure some guys in here will say otherwise.
Have a look at the WSM, but I'd ask yourself is the extra powder burnt worth the results you'll get? Compare the ballistics between the two and see what you think. I've read guys who like the WSM and WSSM's like the extra energy that the bullets hold at a distance, but if you're shots aren't half way around the planet, so you really need to worry?
For me it's about bullet placement! Unless the game you shoot have been eating something that gives them 270 proof bodies, I think I'd stick with the 270, but that's just my opinion based on where and what I shoot. Everyone has their own requirements.
I also like the idea of more rounds in the magazine too. You got five rounds in a Featherweight 270 or three 270WSM in the same model. I'd rather have the extra two rounds.
I've never been convinced about my need for a WSM's and WSSM's myself. For what I do, I don't feel the need to burn a lot of powder for the extra velocity and energy over long distance. I witnessed my Dad knock over an animal at 610 paces with his 270, so I'm not convinced the 270 is on the way out. I think my use of a bolt doesn't make 25mm less bolt throw an advantage. How much time would it save to have 25mm less bolt throw? Mmmmmmm! Can't say i'd notice to much difference! I like to not have two rounds less in the magazine too.
I'm not sure if recoil is a big factor for you, but have a look at the recoil tables and look for the differences. Recoil might not worry you too much, but I'm just putting it out there in case.
What do you have in mind to use your new rifle on? I read somewhere the other day that 270 and 7mm08 are basically twins. Maybe that's the topic for another post! LOL
Do plenty of research mate, and I'm sure you'll make the best choice for yourself. I hope I've been of some help to you.