If you're down to those 2, you're probably better off going with the Surge.
It's a great light when in flood mode, but if for some odd reason you really need a tight focus, it's there.
The BB is a great flashlight in zero light conditions, but when it comes to throw, it won't win against the Surge. It's still a great light to own, though. And if you need a good, white light at night, the BB is a good option.
Both the Surge and BB will only run you about $65, so it's not too far fetched if you wanted to get both...
BTW: I would've recommended something like Inretech's
Super6 or Helios . Its flood beam is quite impressive.
You can also ask EletroLumens
[email protected] to build you a custom LS floodlight. I got an OctoLux from him, similar to this one:
It'll light up a huge area in front of your friend's horse...