more legroom and a bigger seat nothing else really matters.
lounge is nice but not essential.
i can buy a paper.
i don't fly for fine dining on board., so econofood is OK.
i'm 6'4" and i cannot do longhaul in 31". 34" is bearable. ( i like AA to the States and have used them 3 times in 12 months for leisure travel). 38" is good. i like WT+ and have paid for it down to SYD. BA have got to watch the price though on that route. MAS and Cathay both seem to have offers of around £2k LON-AUS in J when 2 travel together and i'm likely to use them rather than pay £1700 in WT+.