Honestly they are two different guns, built by the same maker. Similar in some ways, but others they are vastly different.
For one, My Glock 35 has had just about every part replaced with competition items, Vanek trigger, Dawson magwell, Arredondo extended magazine bases, Warren Sights, Wolf Barrel, Novak Tungsten guide rod, lighter springs, Jager lightened striker and JP magazine release. I also stippled the grip.
My Glock 23 is bone stock, with the exception of the Night sights, Wolf barrel, R. Sotelo trigger and Agrip.
The Glock 23 seems to kick a bit more with the same loads, but it is manageable with proper stance and grip.
I prefer to carry the 23. And I like the it is mostly stock, which allows me to shoot SSP with it. I am new to IDPA, so learning as I go.