Flush for western Commode

[Dreamhome]

Hi Experts,

I would like to know which is the best flush to opt for western commode in bath room. Will it has to be wall mounted flush or direct flush or the one with comes with flush box.
Please do let me know the advantages and disadvantages to justify the your thougts. This helps me in shoosing the right option.

Thanks in advace.

Dreamhome

[sam_m400]

This is input which i got

There are the flush type which are direct and tank . commode type(wall mounted, P trap, S trap) to be fixed, and heard P Trap is good for lower floors like ground floor and S Trap is good for first floor.