Walkway ideas

We are planing to get our driveway done in exposed aggregate. We are thinking it would probably be best to continue the same material around the front of the house as well (in front of portico etc).

The only thing we are unsure about is the walkway from the street to the portico. Our architect has drawn it in as a single door width, however we are thinking it should probably match the width of our front doors. Or should it?

What material should we do our walkway in? Pavers, bluestone or just match it to the driveway?
Also, should we keep it "straight" or flare it out a bit towards the street?

B