See my signature links to see why DFHS owns BFD. This has been covered quite a few times, a simple search will bring up a rant with several posts by myself (I think I'm the resident DFHS nazi, btw) and it's a few pages long.
The summary? DFHS costs way less than BFD. DFHS has everything in one package. To get the full kit that you can get with DFHS using BFD, you have to buy the expansions. I think you have to basically spend twice as much on BFD+expansions to get the same amount of slots, etc. as DFHS. DFHS has
left and right hand/foot hits. BFD does not. That alone makes me laugh when people consider BFD to be DFHS's competition.
However, in all honesty, the two libraries are actually the best ones out there. In my opinion, with the cost to quality factor, DFHS wins any day of the week. Coupled with the fact that it's got realistic left and right handed/footed hits...I mean, BFD doesn't offer that at all, so it's not much of a competitor, in my opinion anyway. Where I work, my boss bought BFD with the assumption that it would be awesome. It was much less. We were surprised at how limited we were with options as far as how many peices we could put in the kit, the available sampled peices, and so on. We sent it back and got DFHS and have never been happier. We have made quite a few GOG files for Drumagog using the samples from DFHS and it's just phenomenal the amount of time it saves us. However, we couldn't have done that with BFD- to a certain extent -because we would have had to buy the expansions in order to create such complex GOG's. I mean, every single snare, kick and tom that DFHS has, we've put into Drumagog. Plus we produce music for vocalists and people that need music for their commercials, so having all the versatility in one package (at a cheaper price) really paid for itself the first few times we used it with clients.
Anyway, in the end it's really up to you. I would advise getting DFHS, but that's me. Again, there are sound samples of DFHS showing off in my signature links. Mind you, there are no known clips like this of BFD...what does that tell you?
~006