Depends, I would try CX J for sure, especially their Pier lounge is really great. Emirates A380 is really nice, but 777 is terrible. Their lounge in Dubai is interesting. Very large, but feels quite over the top. I'm hoping to try SQ and QR in the near future.

I would say this, don't pay extra for cathay dragon or silkair or any other regional airlines of big name international airlines.

B6 has the best hard product in J, Y+ and Y domestically, so you can't go wrong there. For flights under 4 hours, it's hard for any airline to beat them in terms of seat room and IFE options.

A lot of people really like flying Porter to Canada.

If you ever travel inside Asia, any discount airline's exit row seat is comfortable enough and very cheap.

From East coast to Europe, I really like prem plus on OpenSkies. Good value for the money. If you really want to be adventurous, you can try La Compagnie. Most of the flying inside Europe is super cramped and uncomfortable.

In south America, Azul and avianca are pretty nice.