You should also avoid peak lapels like those on the Tom Ford. Fun, but again, not unless you have a rotation already. You can have many loud suits, you can have a few conservative ones, but you can't have a few loud ones. Obviously a mix is fine.
So yeah- navy, charcoal or a mid gray. Any of those should be appropriate for any occasion a suit is called for. The mid gray isn't really the best for a funeral, but the black one would be perfect. The only other thing I would advise is that if you choose to go with navy, get one light enough that it's obviously a shade of blue and not just a shade of almost black. Same with the charcoal, really.