Hi Bert,
I can only speak for the Little Bastard, mine is the 1st - Serial Number 1 - of the hand made UK 100. I've had it from new, straight from the factory & it's been used almost every day since. Not a problem, day in day out, so ultra reliable in my experience & the tones available are everything an all valve amp should be, can't fault it, does everything I want in a amp. I must admit, it's old school, that's just right for me.
Traditionalness? Yes indeed, absolutely in bucket loads
I've recently bought a new MiBass 220 for the 'alternative' sounds & the portability, it does exactly what it says on the packet with Ashdown tones by the ton.
Can't comment on the PRC made LB models, other than I've not heard of any problems with them.
Haven't touched an Orange amp for 30 or more years I suppose, they were good in the day but I always used HiWatt I'm sure you'll get plenty of replies from the current Orange Bass Terror owners to balance with my views.
Cheerz, John