I love QR's A350 J, the cabin design is beautiful, even the curtains look good! I have found you need to sit as far forward as possible to get served quickly on it though (but I don't like row 1, too noisy).

On the 787, row 1 window seats are the prime seats as even though they are noisier you get a wider footwell to compensate which helps with the narrow feeling. I love how quiet the 787 cabin can be given how few seats there are.

The 777 I only like if you can get two seats to yourself, otherwise I think it's too cramped and I don't like the idea of sleeping that close to a stranger (even BA's CW product is better as you can put up the screen and your head is further away from theirs due to the yin yang layout).

I haven't yet done Q-Suites but looking forward to it.