I think another pro that some have on sitting forward is being in front of the wings and having some reduced noise. Personally, I can't tell much of a difference if any. I like 26K right up against PE. On the 77H there's nothing in back of you but the PE lav. Bassinet seat is behind the lav, 32H. Not sure about the other side, but behind is the exit row with large space, don't think there's a bassinet on the exit row.

If I fly the 77H in J, I usually take the back of the cabin if I can't get the front mini cabin. Its generally pretty quiet back there. I don't fly the 77H that often as I'm mostly out of EWR (A359), but early last year had a few flights out of JFK sitting in the back (25/26) and had FA's offering me choice and I'm only GO. Flew a 77H in December and didn't get asked about choice until the cart came but J wasn't packed.