IMHO I would let your viewing distance decide.
Where do you sit relative to the screen?
If, like me, you are only 12 feet from the screen I vote for the 47".
My field of vision is such that something bigger is too much and my eyes have to move to scan the whole screen. It's like watching a movie from the front row at the theater. If you are thinking of something where you are concentrating your focus at only a portion of the screen then maybe the larger but my eyes can't handle it.
Get a tape measure.
Outline the 46, 55 or 60" on your wall.
Sit back, get comfortable and decide for yourself how good your peripheral vision is; if you can take in the entire screen and "process" that info with one look go for the bigger screen. If you find you brain doesn't get everything and it wants to "recheck another portion of the screen" go for the smaller one.
If you were a running back in football my guess is the larger will work
If you played tennis the smaller one!!!