I am going to be buying a radar/laser detector here soon, so i need to know which one is better. Valentine or escort. which one is easier to use and where can i buy it for the cheapest?

1999 contour se sport- black mtx
-Duratec v6
-dual exhaust
-no resonator
-kkm induction system
-one loud stereo
-35% window tint
-18' Enkei CDR9's on Kumho Ecsta Supras.
-Audi A6 Sidemarkers
(Coming Soon, Very Soon.)
-SVT front and rear bumper.

2002 Passat V6 GLX 4Motion