Upload & Sell: Off
These are very nice. I'm torn between 1 and 4. #4 has a very bright, cheery feel to it, and I like the side light and separation from the background. In 4, there's more environment that shows his very nice house (and bonus pictures of him to our left) and even though the BG is more in focus, you still have nice separation, because he's a good stop or so brighter - however that picture frame cutting through him kinda bugs me.
BTW your grandpa looks stinkin' awesome at 93. Holy cow.