Its your life sir, you should choose what you want😎

But seriously, stock CFD is more like imitation, you trading the movements only, so like FX it have spread and some commission, and more leverage.

Real stocks is little bit different, its real shares in companies and its commission will higher. Also currency like dollar or euro maybe different in real stocks.

So if you like forex, CFD you should choose or if you like being owner of company for some time, choose real stocks.

NAGA offers both real stocks and CFDs, and from what I can see, there's a big difference there.
For example, CFDs have on average 1,5x - 2x bigger spread than real stocks here (for USA stocks).

Real stocks usually have rounder numbers too! Maybe its better like that for some specific algo systems, seems plain easier to calculate.
Real stocks seem better to trade, in short. Weird.