Scuf or imagin customs. You will get some sweet controllers for $120 dollars or less. Hope i helped

i got mine from einstein modz but i don't recommend it x]

i would go for a scuf controller.. its well worth the money, but also i would wait get the new console and buy a scuf controller, theres no point of buying another xbox 360 controller, less then a month the xbox one will be out ..... but i highly recommend a scuf controller, very styish and comfortable

I'd say don't waste your money.. Xbox one is coming out.
but when i bought one i went on ebay and got one so you can see designs and pick what kind of mods you want.

Scuf is the best imo. Imagine Customs is good too but a little over priced

It depends on what type of controller you want.

Custom controller with cool design and LED's? [ Register or Signin to view external links. ]

Scuf controller, pro controller. No cheating? [ Register or Signin to view external links. ]

Modded controller. (Rapid fire dropshot etc)? Trust none of them..

ControllerModz.com nice and legit go check them out

It depend son what u want, imagine customs do really nice designs on there controllers since my mate has one and there really good quality and have a nice feel and are really durable but then i would perfer scuff controllers cause there more for gaming rather than looks, because of all the changes they make to there controllers to fit it around the genre of game u play for excample if u play call of duty then you can ajust the stops on the triggers so u have a better fire rate or there are little paddles on the back what u bind a button to and press that instead of the button like if u set the paddle to A then u press the paddle and it will do A for u so u jump or something like that
scufgaming.com
imaginecontrollers.com/

Get a Scuf best ones out there