Just my opinion, but I think the mess dress uniform looks better and more suitable for Navy Balls than Chokers. If I had a cougar date, i'm very certain she'd be impressed with my mess dress than in my chokers, not to say either one will do the trick.
One of the few things that make me jealous of the Boat School is the fact they get them and use them a good amount of times. I wish NROTC would do the same. Oh well.
While I wouldn't call myself a Cougar, trust me anyway when I say that Chokers are way hotter than mess dress. Way hotter. I am confident that 9 out of 10 women would agree with me.
And wear you cover to pick up your date. You can leave it in the car for the rest of the night, but have it on when she sees you waiting on her doorstep.