K&R's subs are based on the Mei Ah (and slightly improved).
Let's start with a couple of sub samples.
Mei Ah top.
K&R bottom.




The translation is similar but K&R's subs tend to be more precise (and some of the signs are subtitled as well).
Let's move on to PQ:








No contest.
The Mei Ah looks like a poor VCD, complete with non-existent shadow detail, edge-enhancement and giant macroblocking artifacts.
It's interesting to note that the Kam & Ronson transfer is slightly cropped and that the framing is a little bit different.
Still, if you've got the Mei Ah you really should upgrade IMO.