I flew LAX/DTW on the B739 this morning. I originally had a choice between 21A & 21C. I assumed that 21C would have extra leg room, same as you! WRONG! By the time I saw these pics, 21A was gone! It suddenly opened up a few days ago, so I grabbed it.

Also, about 21A/F: The TV screen is in the seat back of the seat in front of you, which is waaaaay up - basically the same as 2 seats in front of you! Also, the guy in 20B had a bag under 19A when I arrived. I had to ask him to move it, as that space belongs to 21A!

I say 21A/F, if it doesn't bother you having to ask people to move when you need the lav. Fortunately, 20B & C got up, so I left at the same time.

Nice to have AC outlets in Y!

I was a little disappointed that the FA didn't announce anything about the new plane in her announcements. It definitely had new car plane smell when I boarded!