My own pre-landing check is quite comprehensive and covers all the a/c I currently fly, but is memorised as it should be. It does not involve any mnemonic and can be achieved almost exclusively whilst looking out, save for a glance at the distant fuel selector (in one or two cases) and at the 3 greens in one of our aircraft.
I disagree however, that memory aids do not have a place.
The vast majority of checkouts and all LPCs and LSTs - for VFR only pilots - include a PFL. Because these guys and gals generally don't practice enough, some struggle to remember what to do and in what order to do it. Mnemonics galore for situations where a checklist could much more safely be used, but when you really need help there isn't any!
I had the same problem thirty odd years ago so I invented my own mnemonic. It immediately got me doing everything that should be done, all in the correct order, allowing me to look out most of the time and improve my judgement (although that took a while). Of course it morphed into a string of memory items quite quickly.
I should have copyrighted it, they all wanted it.