I would echo the sentiments of
ThatT1Feeling. I too am over 6'3" and weigh more that that. I tend to look for airlines that have PE offerings as the extra room is essentially what I am looking for. I don't really need all that fancy lounge stuff and gizmos, just a decent, comfortable seat with legroom. In many cases, the PE offering, whilst a lot more than standard Economy, is substantially cheaper than Business Class.