Help!!!! Which diver is the best????

[airchitect]

So I posted a thread a few weeks ago stating that the size/proportions of my 216570 was getting to me. Thus, I was considering a trade. This past weekend I took my two little ones to my favorite AD to find a hulk, a sd4k, a YM (blue), and a 34mm OP (grape) waiting on a tray for our viewing. All of them, in their own right, are beautiful. As I type, I am wearing my BLNR. This watch, though not a Pepsi, basically fulfills the dream I had from a young age for a GMT. At this point, life has lead me to consider unloading my EXPII. Now, its my first Rolex and has sentimentality because of it, but it also has some negative connotation due to certain life events etc.... Sounds stupid, but it does. Anyway, the four watches on the AD's tray, represented the path I'm looking to take. Something new for my wife, and something new for me. My issue is this....first, can she ever pic between the grape OP and a Date (she wants 34mm)?????? And can I pick between a Hulk, the YM and the Sea Dweller???? My initial feeling is that I LOVE the YM. But I don't like the price, nor do I like the fragility of the finish on the bezel. Next, the SD4K. I love the idea of what it is. "the" diving watch, but when I wear it, I feel the case back is slightly obtrusive......but I may need to just try it again. Then there's the Hulk. Its unique, its beautiful, it holds its value. But is it a long term keeper? Anyway, the point here is this. For those of you who have owned these watches, why should I buy each one? Which is really better?? They all "basically" the same from a functional perspective. I'm looking for your opinions. Not "do what you want". I want to be convinced.