Which White Gold Sports Rolex should I get?

[Lee66]

The gold line up in Rolex's GMT and Sub watches are quite amazing. However, the yellow gold is too indiscreet for me, so I am considering the white gold variants.

I'm thinking about getting either the 116719 BLRO or the Smurf 116619 LB, but can't decide. There's heaps available in both models on the secondary market in BNIB or super fine (1) condition. I note that the BLRO on average is about $2K more than the Smurf, if both are in the same condition.

I would very much appreciate your advice on the following:

1. Why is the BLRO more popular? Is it only because of the two tone ceramic bezel?

2. Is the Smurf unpopular and considered a dud amongst watch fans? I always thought that the subs were at the top of the tree

3. Which is likely to hold onto its value in the future the best?

4. Does anyone know what the gold scrap value in those bad boys would be?

The AD's in Sydney have the new BLRO and Smurf in stock and I've seen them in the front display window, not that I would buy a gold watch from them! When was the last time anyone saw a SS Sub-C or Batman in the show case?