i'm looking for a maple jazz bass neck w/ a maple board. and i don't wanna spend a ton of money, who would you say has the best replacement jazz neck for the price. i'm looking to $150 or less, and i want the neck to be finished. let's hear some opinions between these 3.

Mighty mite bass necks are very much like Fender made in mexico necks, but a little better in some peoples opinions. They are adjustable on the headstock. For the price, (you can find them on ebay) it can't be beat. If you are picky and u want steel reinforcement, truss adjustable at the bottom, and fancy smancy wood, try warmoth. Allparts is a fender licensed company that sells American fender-like necks. You can find a warmoth neck with either rosewood or maple fretboard in the fender shape for exactly 150 bucks.