This one is hard to answer in a short manner - because the answer is I love the idea of a Batfamily, but the size and scope of it depends on context.

A Batman that is just starting out should not have anyone other than Alfred and Commissioner Gordon on his side. He is the urban legend that strikes fear into the criminals of Gotham.

After being around for a bit, he gets a Robin. Softens a bit due to the partnership and becomes a bit less grim. Then we add a Batgirl. Robin retires and becomes his own man, and a new Robin joins the team. At this same time, the growing legend of Batman in the states starts to spread (especially if we are doing him as a Justice League member.) and inspires heroes to start rising up around the globe.

Now we join an older Batman, with him is his son as the new Robin (yes, I like Damien when he is handled well - I love him as Dick's Robin in the early Batman and Robin run from Morrison), Nightwing, Red Robin (Tim), Batgirl (Cassie), Oracle (even if you take out her being crippled by the Joker, Babs being the team info goddess is something I love), Huntress, and sometimes Catwoman. Then there are the heroes like Knight and Squire of the Batmen of Many Nations, who have forged their own legends and teamed up with Batman.

These guys aren't always together, but when they need to be they are a force to be reckoned with, and no matter where Batman is - he is never truly alone.

(And that isn't counting his best friend Clark. If shit gets bad, he knows Clark has his back. - Yes, I am one of those old school fools that likes to think these two are genuinely good friends that sometimes hang out.)