Leaving aside the banality that any tobacco can smoke in any pipe, I find it better to smoke flakes (not crumbled) in pipes chimney. This is because the brazier has a smaller surface and the smoke is governed better. The whole flakes, in fact, burn worse.
But usually the flakes I crumble them.
On the other hand, on the discussion that the shape of the pipe changes the taste of tobacco, I think it is true, but this may also depend on the fact that there are no 2 briars (or, if you want, two pipes) with the same taste.