As mentioned you should look into why they broke or risk the new shocks ending up like your current set. Unless they blew a seal or something. Right now my 5100s limit my rear suspension travel ( like the factory setup) not ideal but they seem no worse for wear.
Bilstien is great, reservoir only helps the shock keep from fading for a longer period of time. Which for the type of wheeling we do really is not necessary.
I tried procomps monotubes to compare them to Bilstein, the procomps have less travel for the same application and already had one replaced under warranty for losing its seal. Oh and they ride stiffer. I really like the Bilstiens.
For me the most useful thing in a shock (even more important than maximum travel in the application) would be valving. Since there are tons of weight differences and after market springs with varying rates etc. for wranglers I think a shock with adjustable valving would be completely worth it..... for a little more Rancho offers an adjustable shock that you can adjust to your liking, people seem to love them. Something like that is what I will get next.