There's no way anyone here can "know" what's best for you, right? I mean, I HAVE read your mind already, but don't yet understand why you fish in the dirt. Not judging.
For me, I'd gauge how movable I valued the kettles to be. If *never* moved, an integrated table could be neat. If moved around the deck, taken to parties, tailgates, other potential uses, a simple table with cutouts could be neat.