For me I'd say A380>B787>B777>B747 in F.

I did toy about putting the B777 ahead of the B787 as they have different pros and cons and I've only been on the B787 in F once so wondered if there was still a novelty element to that.

One trend is the B747 has steadily gone down the list for me. If I'm guaranteed row 1 or 2 then it's still pretty good but I just find anything in rows 3 and 4 terribly cramped for an F cabin. Given the upper deck on the same aircraft is a step above any other Club World cabin, on the B747 I'd rather save the cash and/or miles and go upstairs (especially for an overnight flight). It somehow feels more spacious.