What is the best CRPG to learn RTWP?

Hey guys,

I really enjoy CPRGS with turn based combat (DOS2, BG3, Rogue Trader).

I know that there are a lot of CRPGS with RtwP.

What is the best game to learn RtwP?

For referance: I have these games and would like to know which of my games I own are the best to start with.