Roxie, I personally would go for BM2 if you have a limited library just cuz it has everything like someone already mentioned. I have B&G, but I'm not wild about it. It's a great WO, but every time I do it I get SO sore that I can barely move for several days.
I need to work on that, obviously, but it makes it really hard for me to convince myself to do the WO - know what I mean?