Roddy,
Can't say I blame you for not wanting to install either one.
Murphy's Law says- The format you install will be the one that fails.
But what if a customer requested one of the two and you had to recommend one. Would you attempt to talk them out of it, make them choose or let them trust your (best guess) judgement.
A lot of people sound anxious to purchase the combo player LG announced. But it doesn't sound like a great machine, spec wise. So that might not be a solution either.