DRUM question. please?

so im looking for a drum set.
either ludwig or yamaha
what would you choose and why?
and the bass drum
why is there a hole in the front of some bass drums
like in this drum set
http://www.music123.com/Ludwig-Accent-5-Piece-Drum-Kit-and-Zildjian-ZBT-Cymbal-Set-443278-i1320640.Music123
does it make it louder? is it better than a closed one?
thanks for answering

i would go with yamaha, better quality.
and the [...]