nice dry well seasoned wood, not much smoke and it smells nice :-)
smokless fuels, are not ver good for the environment (mostly by the way they are made). They also have a nast ‘chemical’ smell and some can to very (dangerously) hot, could damage your fire pit and of course they just give off a mean, dull, orange glow, and no lovely dancing flames – which is why you have a fire in the first place :-)