Hi guys , I am thinking about making my third quad , I am thinking about building my third quad as 450 size one , with the following electronics
4x avionic 850 kv quad motors
1x hobby wing 20 am 4 motor esc
1x 2200 mah 11.1 v battery
1x  orange rx fasst 8ch receiver

Both of my old quads have the kk2.0 board , but now I'm thinking about using the more advanced boards , need you guys to tell me which is better kk2.1 or multiwii 328p control board ?

go for apm with gps
and osd
and telemetry
and voltmeter
best thing
and u can even set it for using it with a car or a boat or a plane

I want a basic setup only , which comes under 3000

http://hobbyking.com/hobbyking/store/__42250__MINI_MWC_Flight_Control_Board_and_DSM2_Receiver_ACC_GYRO_BARO_MAG.html
it already has a reciever....
u can buy a gps of 17$
instead and have a very steady flight

I have a futaba 8 fg super , which works only on fasst

http://hobbyking.com/hobbyking/store/__22322__MultiWii_NanoWii_ATmega32U4_Micro_Flight_Controller_USB_GYRO_ACC.html
connect your own reciever
and buy a gps with it
http://hobbyking.com/hobbyking/store/__31135__NEO_6M_GPS_Module.html

Both the multiwii , nanowii and 328p are available in india with gps , my question is which is better ?

well its a matter of choice
nano wii has a support for
 bluetooth telemetry, GPS, DSM2 satelite etc

while multi wii
has two sensors as an additional benifit
BMP085 Barometer
• HMC5883L Magnetomet
so it depends on ur need
if u dont wont to go for gps then go for multi wii
or looking for future addons like bluetooth or an oled display
then nanowii

and well in nano wii yuo have an i2c post if you want to connect an external magnetometer or barometer

From where to get that baro and magno meter from ? And what's its price ?

Nanowii does support gps but there isn't enough space in there to write the sketch. Some people have got it working but details are sketchy.
Multiwii 328p is much better because it has onboard barometer and magnetometer and more space, which is not there on nanowii or kk 2.0/1. It also supports gps.

I just moved from kk to multiwii, and the latter is more tunable and upgradable.
Altho nothing beats an APM, and you can upgrade it at any pace you want. No need to get everything at once.

well then my bad
i guess multiwii is you thing
but yeah apm is the best
easy to configure
u can attach it to any rc stuff that you have got

BTW which is the cheapest apm  ?

u can get one at goodluckbuy for 57$
http://www.goodluckbuy.com/side-bended-pin-apm2-6-ardupilot-mega-2-6-kit-external-compass-apm-flight-controller-board-for-multicopter.html
and when it fits your budget order a gps at later stage

Thanks , but i will buy the multiwii 328p from edall hobby , does it have a slot for gps ?

yes it supports gps but u cant connect directly .. u need to buy i2c gps module and connect gps via it to the 328p fc

@Sharank , according to the overall performance of the multiwii 328p and nanowii , what should I buy ?

buy 328p fc its better ..... u require baro nd mag sensors which are additional cost if u buy nanowii
http://hobbyking.com/hobbyking/store/__27033__MultiWii_328P_Flight_Controller_w_FTDI_DSM2_Port.html
http://hobbyking.com/hobbyking/store/__22322__MultiWii_NanoWii_ATmega32U4_Micro_Flight_Controller_USB_GYRO_ACC.html?strSearch=nanowii

See description for both ..

I recommend 328p .. ( if u buy nanowii u shd buy sensors additionally )

So I'm buying multiwii 328p from edallhobby , after my exams are finished . Thanks for your help everybody , who helped me  

search for Moochasas in youtube .. he has loads vdo's setting up 328p

Thanks ,will see