I think you'd stand a better chance of a helpful response if you rewrote your post.
There's no such thing as "elite" seating on US. There's just Choice (everyone pays) and Preferred (elites don't pay). How it all shakes out, however, is going to depend to some extent on how booked the cabin is, which in turn will depend on whether you're flying at a peak time or in peak season. If you're looking to have a large party sit together, for example, a week before a trans-Atlantic flight in the Summer, it may be hard to do so without paying for Choice.
You can also pull up the seating chart for your flight on line, for whatever insight that might give, if any.