Originally Posted by
T8191
Don't be hyper,
lady1964, or believe everything said here is Gospel.
I would personally avoid anything forward of the 62s. Anything aft of that is a matter of access/climb-over. 62K is fine: you may have a low metabolic rate, in which case you could consider socks, a sweater and a parka. Temperature has never troubled us in 63A/B [the other, downwind, side of the doors].
I had a look at your 63AB yesterday- they looked quite nice. The extra space on the UD is notable, the side bins are great too. On both flights, out to EWR and back from JFK I have never had a cabin where the temperature differs so much, one minute it felt boiling hot and the next it felt freezing cold... and others were talking about it so I know it wasn't just my awful cold making it feel like that, although I'm sure it made it worse!