Passing ability with feet. Improved.
Starting position to sweep up behind defence. Much Improved.
Cross collection. Very much Improved. I don't think I've actually seen him punch one out in the past month.
Counter initiation/ choice of throw or long kick out accuracy to sustain attacking impetus. Improved.
Clean sheet percentage is probably going to end up improved as well come end of season.
Perhaps the only metric where Ramsdale is superior is spectacular shot stopping. But we literally face almost zero shots on goal these days.
My verdict: Raya's definitely an upgrade. Provides peace of mind for both players and fans (myself) alike.