For almost the same money, I might pick 6D + 28-300L. As 70D is around $1.2k, which is not too far with 6D $1.6k; also 10-22 is another $500 anyway.
I'm thinking to replace my 5D2 with 6D, too.
10-22 (or 16-35/17-40 with FF) is fun lens to use. You are not missing much from 8mm to 27mm on FF even you traveling in Europe
I stop taking wide angle lens for travel 2 years ago.If the funds were available I would probably pair the 28-300L with a 6D to take better advantage of the wide end for landscape. The widest I've ever used on the crop frames has been 18, which is about 28 on a FF anyway. Of course I'd love to get a 5DIII.
Isquare, If you need frame rate the 70D might be a good choice. It looks like the 70D also has articulating LCD and some new video features if you are into that.









