Just did SQ19 in Y last Fri....was in 38G

Er....not really for the legroom...you get the bulkhead but its just enough for you to prop yr feet there on the wall. Its best for early disembarkation no doubt but not my personal choice.

Row 34 (exit) would have the best legroom....but like 31...NO footrest. Your feet are dangling when the legrest is extended so its not really that comfy from those that were there that flight. I did almost 100K in SQ Y last year so the footrest mean a LOT to me especially on non-A345s

The 3-rows behind Raffles are 'clubby' as Guy Betsy said but I think its a bit too close to the toilets for comfort; especially row33. Light (though there's a curtain) and noise (maybe smell too) from the toilets are not exactly ideal.

IMO, any aisle seat (D or G)in the centre block in the main cabin bar the last 2 rows would be great. Less likelihood of someone bothering you when they need to get out of their seats when you're sleeping into the aisle. You'll be woken in C & H when those with window seats want to get out....