One thing in favour of NPPL is that the medical requirements are not so stringent.
The NPPL medical can be done by your GP and equates IIRC to the standard of one of the HGV driving licences. (Don't know which but someone on PPRUNE will know.)
This might be useful if there is any doubt about getting the full medical from an AME.
Still the LFAT Channel Islands idea mentioned earlier is very appealing once you've clocked up a few hours especially if you are based darn sarf, so don't bin the PPL idea without serious thought.
Whatever you choose, one thing is certain: you are guaranteed to love it and be hooked for life.