Jade. Core Lightning.
Discussion
Jade is hardly a success, will see if is around in a few years. How many HWW are there? Same for c-Lightning. There are other implementations out there. Much less funded companies and individuals have achieved much more.
I don’t want to shit on them, they have brilliant people on payroll, and have contributed immensely, specially early on, but you can’t help but feel something is lacking.
Jade seems pretty successful to me. I see it being recommended and people using it because it's cheaper than other offerings. How many people use CLN? We don't know and that's a good thing.