Priming

I have read some posts where some brewers prime the bottles and some prime when they transfer to bottling bucket. my question is which one is better or do i have to do both ?

 

I use priming sugar in the bucket, its just a lot easier and you get a more concistant prime that way.
Either way works though

 

Trying to measure out a couple grams of sugar for each of fifty bottles sounds ridiculously tedious to me. Add it to your bottling bucket.

 

+1 for bucket priming. If not careful, you may end up with bottle bombs if primed too much using the per-bottle method.

It is much easier to mix 5oz of dextrose with a cup of boiling water than measuring out 50 plus bottles ...

 

If you're transferring your beer into a bottle bucket anyways, there isn't any reason to try priming your bottles. The only reason would be to test different levels of carbonation.
But even still, you need a scale with great accuracy. The difference between different carbonation levels can be half a gram.