I had an LCR in .327 magnum and found it a bit stiff on recoil. I sold it and just got an SP-101 in the same caliber. It makes shooting better for me. I have an LCR in 22. LR and I love it. There is one good thing about the LCR in any caliber. They are a pleasure to carry concealed or open. If I didn't have damage in my hands and related joints I would have kept the LCR in .327 magnum. I will keep the .22 LR for sure. I have thought of getting an LCR in 38 Special.
The LCR's are snubbies, and they shoot like snubbies. I have an LCR-X in .22 LR and it is a better shooter than the LCR, but both are adequate. I have several SP-101 revolvers and overall I prefer those for shooting. I would say that your choice should be based upon need and function.
Both models come with excellent triggers. There is no need to do trigger work on firearms to be used for self defense. Learn the trigger, practice shooting with it, and it will be fine. In actual combat you would never know the difference in triggers. Good luck!