They both end up with the same logic.
Logix is a traditional function configuration (like that which used to be used in Programmable Logic Controllers).
LogixNG is a language construct similar to Object Programming (new stuff).
It's like different human interface looking at the same thing.
Use whichever you're comfortable with.
I've used both. I'm an old dog that grew up with the functional configurations.
--
Ken
NYNH&H, Old Colony Division, Cape Cod Branch (1949-1959)
[DB150][PR3][QuadLN_S][JMRI 5.3.5]
Ken Heywood