I dont think it really matters with the Bridge rectifier just as long as you get the pins right ie the positive and negitive markings on the output side its just so if you plug in an adapter with reverse polarity or AC supply it will still supply the +ive to the +ive track and the -ive to the -ive. The only other consideration is if it will fit on your board or not!
The voltage on the Caps is not too important either just use the closest voltage you can find. Not too big tho
If Ive got this wrong someone please correct me ;)