Hi, welcome to the forum :D
I haven't tried a Brown Sugar, but I have got a Blackguard Flat 50 set that I'm very happy with. I put them in a Baja Classic Player tele - and (as far as I can tell) they're giving me a great early tele sound, fat but still biting - for what I want they're much better than the original pickups, which were good, but a little thin for my liking.
I play blues/rock as well, and I've got Irish Tours in a 62 re-issue strat. They replaced the Texas Specials that were stock. I liked the Texas Specials but the ITs have just a bit more "air" to them. SRV, Dire Straits and Rory come out of both the strat and the tele quite well now :D (don't do much Pink Floyd)
I'm guessing we play the same sort of sounds, so I'd say you wouldn't be disappointed with Blackguards. Someone else will have to sing the praises of the Brown Sugars :lol: