Battlegroup sizes?

hey

I was checking out this Website

http://www.wow-europe.com/en/info/ba...tlegroups.html

it seems that some Battlegroups very very tiny indeed while some are almost enormous in size

should I choose a server that is in a battlegroup that is big if I want to PvP alot or does it not matter (e.g. servsers with tiny battlegroups have larger populations?)

thanks! :)

also, is the data at Warcraft Census accurate anymore? at least their addon hasn't been updated for months and months

this site http://www.warcraftrealms.com/

The bigger the better when it comes to getting your raw rating up. Plus 5's are sometimes hard to even get to pop in low pop battlegroups.