Your favorite carbon fiber cleaning brush ...?

The plain ol' black Audioquest - - before and after playing each side.  I've been using this brush for over 15 years and have been very happy with the results.

I have the AudioQuest Gold brush.

I find that is is fairly useless.  It does not pick up anything. 
It will push dust and debris into a straight line, but that’s about it.  It often leaves much behind. 
 

I still have an old discwasher brush that one would rotate slightly while the record was spinning. It worked quite well, picking up debris and removing it. 
 

With the Audioquest brush I have to apply it to a spinning record, and try to sweep the debris forward and off. To get it to be at all effective, I have to do this 6-8 times. 
 

None of them work in a dry climate like the AZ desert.

My Hunt EDA MK6(now Music Hall) is so old....

the carbon bristles that normally extend beyond the velvet pad are worn flush to the pad! 

One of these years I'll replace it with a new Music Hall. The price has almost tripled since I bought mine.

Record Brush Hunt EDA Mark 6 | LP GEAR

I honestly don't use one. I keep my records clean with a Degritter II, using just DW mostly. I also clean my stylus religiously, with Lyra SPT, before each listening session, and with a dry brush after every record. I have a Roksan two-stage micro-fiber brush. It works better than anything else I have tried, but the truth of the matter is they all just rearrange the dust on the disc more than anything, and don't really remove much from the disc. I guess YMMV depending on climate/environment. I am in an HVAC managed listening room.