Would suit me (selfish, I know) - for instance, I believe someone holding a JAA ppl can convert to FAA very easily (just a matter of filling out a form?), whereas going the other way is much more complex (involves lessons, exams and check-ride). I think it is possible for an FAA ppl holder to fly in UK, but only in an "N" registered plane. Can't be many clubs with those (or am I wrong?)!
Some standardization (particularly if it is line with FAA) can only be a good thing, aside from my selfish reasons - one being there is no night rating as such in FAA. Night landings are part of FAA ppl, with the same currency rules as JAA if you want to take passengers at night. Having a separate rating seems unnecessarily beurocratic. On the other hand, I like the JAA IMC rating - full IR is OTT if all you want to do is fly in IMC weather and not enter Class A.
[ 29 October 2001: Message edited by: sanjosebaz ]