I don't wish to be rude, but I didn't want to start a new thread, as my question is fairly similar.

I may be flying EWR to LHR (CO) early next year, and fortunately it will be in BF.

I have 2 questions:

How much nicer is BF than domestic first? (I have flown domestic first several times, and SQ Business once - which was awesome)

If I have a choice between 757 and 777, which would you recommend?

Thank you so much, and belated Happy Thanksgiving!