So, after going back and forth AGAIN, I went to the Cartier store and finally actually ended up switching to the Midsize. I realized that it really is versatile enough to wear to dressy ocassions (despite what the stuffy saleslady at Cartier recommended...lol). Both sizes are definitely nice, but I do think the midsize shows off the style of the watch a little more, if that makes any sense. I'll try and post pics later on today. I have to say, I honestly can't keep my eyes off this watch!
Thanks again for everyone's input. I am very happy with my final decision.