marble : the pros : looks elegant, larger size so easily covers the area fast, less joints.
Cons : the surface is porous so highly addictive of collecting stains, dust marks, requires a very good person to polish uniformly and very well, requires frequent polishing.
the cost varies from 30 rs per sq ft to 400 per sq ft.
Tiles : there are multiple varieties to choose from Vitrified / Porceileno / Granamite.
Right now the trend is of Vitrified or Granamite tiles usage, it looks elegant, easy to maintain and can be of budget cost also.
the best of tiles is its very easy to maintain and clean, housewives and ladies are always happy with it.
A personal advise:
If its your dream house and you need something exclusive then look for R. R. Marbles, its a company with own leased mines of marble in rajasthan.
In my short surveys over the years I have never seen such wonderfull, elegant and exotic colours in marbles anywhere. it comes at a cost though.