I used lynxchan in the first version of reinchan, now i use jschan.
here are my thoughts
LynxChan
>"easier" to setup
easier because its simple to install, runs as a systemd service (if you use systemd), and has extensions, which doesnt matter shit because thats an excuse for stephen not improve his software, use penumbra and see that it doesnt even has (you)s, I hat to add it, captchas for reporting didnt worked even after i spent hours and hours like a retard trying to find a reason.
Has tutorials for simple anons that want to setup their IBs, that is a decent point, more documented than jschan in that part, but toms git has everything you need for a basic instance.
>customization
Maybe because I am a retard getting used to such a simple thing as .pug, used in jschan.
You can also fork any front end out there.
==JSCHAN=
>just works
Didnt have a single problem with my install.
>optimized
While lynxchan loads all the stylesheets at the same time, jschan only loads the selected theme, and is very fast because of similar reasons, in my usage, it uses less memory too, but theres no reason to care about that as mongo is a memory hog.
>tom is a friendly guy and doesnt neglect interesting additions
He is a really nice maintainer, you can ask him anything, he will give a reason or not to add something.
Stephen only added websockets after years and after realizing jschan was getting quite popular, you could ask him something and he would give a reason to not add, basically he only added what he wanted.
I dont have anything against stephen, but you can see who has a passion with his software.
Theres more but I am quite busy today.