I love both my 19 and 23. They are both 2nd generation. I shoot my 19 a little better because it has a 5.5 lb trigger. My 23 has an 8lb trigger (dept regs). But I don't think that the recoil on the 23 is MUCH more than the 19.
I would never get rid of either of them. But if I absolutely had to choose I would go with the 23.