you will get a million opinions on this subject, the view that it is very system dependant is accurate IMO.
Unfortunetly a pair of jumpers can be quite expensive so it ruins some of the advantage of using a single run of better wire
buy used try for yourself and sell at a minimal loss the wire you don't want.
fwiw: a nice way to hook up a single run of wire to a speaker with two sets of terminals is to hook up the + to the tweeter + and the - to the woofer - then use the jumpers as normal. this evens out any favoring of the drivers a normal hookup (both wires to the tweeter for instance) would bring.