depends what you want to use it for. When buying a phone it's best to write a list of all the things you want to use it for. ie, photos, mp3, touchscreen, etc etc... Then visit http://gsmarena.com to compare. ....no one phone is better than another, they are all so different.

I usually prefer phones with good keypad, auto-focus and LED flash

in that case then you should look for phones that have 'Carl Zeiss' lenses/flash. Most cameras nowadays have auto focus.. As for the keypad, are you looking for a slider? A qwerty? A flip? ..at gsmarena you can search by filters, so you can choose which phone has what..

@kart, i agree with you, as i own a C5. Its a d*mn good budget phone.

C5-00 is much better..6303c or 6303i is easily get hot while browsing..the lcd will become hot.

I think you should go for C5. The only thing that C5 lacks and 6303c owns is Autofocus camera, but it's true also, camera of 6303c is very good even though it is 3.2MP and not having Carl Zeiss lens (I'm using 6303c, so I can tell). And another thing, the tiny LED Flash, 6303c has got dual LED. If you are really concerned with a good camera, then only you go for 6303c. But video recording has no difference in both models. I don't know about C5, but 6303c doesn't have video light, so 6303c is

not a right choice. Otherwise C5 is better, i.e., it has got S60v3, ARM11 600 MHz CPU, GPS, 3G, Flash Lite 3.0. It's awesome compared to the price.