I own both. I have about 6,000 rounds through my LCR 357. I would say about 60%, 357 and the other 40% plus p38
The trigger on the LCR is not better than the Smith & Wesson. It has a very long reset and is prone to short stroking under pressure. Whilt it seems like it's better when you first start shooting it, when you start working it in draw present and fire, and in high stress time situations, And on the move one handed, you start to see it's shortcomings.
I much prefer the Smith & Wesson trigger that has been properly broken in by just shooting it for a thousand or so rounds or a nice trigger job by a master like Nelson Ford or Frank Glenn.
That being said, what the Ruger LCR has going for it is recoil is a lot better with plus p and 357 rounds, and the ability to change the front sight is also a plus.
Not all speed loaders work with the LCR that work with the j frame, The LCR has a limited grip choice, And the LCR is a little bit bigger when it comes to pocket carry even with the boot grip.