I'd Go with the triple split. It's got the same diameter and is only .3 mm thicker than the double split, which is very little for a watch that's already above 15mm. The White gold case should make it less heavy than a Platinum one, which helps wearability for such a large watch. Also, I'm Not a big fan of roman numerals, which is the reason why I prefer the dial of the triple to the (Platinum) Double. Judgment can of course be very different on the wrist.