I think it's texture rather than whether hair is relaxed or natural that determines if either hair can be a lot more versatile than the other. Natural type 1 hair for instance looks like any relaxed hair so I think it can only do what straight relaxed hair can do. Braid-outs, twist-outs, smooth buns etc. While type 4 hair can not only be pressed to resemble relaxed hair and thus do those styles and look the way relaxed hair looked with them, it can also be styled for a different look by the same method (twist-out or braid-out) while in its unpressed state, or it can be worn as an afro, which straight hair can't exactly pull off as well as type 4 can. Of course texlaxed hair might be more versatile than relaxed straight hair but again, that depends on texture since everyone's hair processes to a different level.