I am actually camera and lens less right now, sort of. Just put up on Ebay my camera with Tamron lens on one listing and then my fisheye on another. Hoping I can get around $500 for camera and lens and then $200 for the fisheye. Sold my 35mm and 70-300 two weeks ago. So technically right now im an HTC One photographer ahaahaha, which the camera sucks
Now im kicking around the idea of getting something wide before I get one of the other two. I will use the heck out of the wide lens for sure but will I use it more than the Tamron 28-70. The 50mm F/1.4 is a given I think. Now its just having to justify what direction to go after.
I think I said it earlier, if you get the 50mm.... that makes the 28-70 far less critical. I can easily walk around all day with 50mm on full frame.
Suppose if you really want the best, go with the Zeiss 16-35. Absolute widest, Sigma 12-24. Or affordable/decent/used -- Minolta/Tamron 17-35.
Or prime.. Minolta 20mm.
If I have time this weekend and if it's warm enough, I'm going to run some tests of my telephoto options.... I own a Minolta 135/2.8 prime, a beercan 70-210 f/4, and the Tamron 70-300 usd. (Surprised you sold your Tamron.. I know it was the older version, but wasn't it full frame?)
My main curiosity is the beercan performance --- You can now find good copies for around $100. And I'm hopeful that aside from CA issues,the performance will be top notch.