100% could be wrong, but I feel like the DAZA has pushed further, especially on high end builds. Maybe it’s just what I interact with and see, but the amount of >1k hp DAZAs is more than the number of >1k BMWs (the new M3/M4s are insane though)
S55 didn't get pushed as hard, it was a struggle to get them into the 9s with how poorly they launched.
DAZA was quickly successful at drag since they launch harder (0-60 in 1.5s!), but I believe B58 has set higher power numbers by a bit. 6 port heads flow very well and they can be stroked out to at least 3.2L. At the tip of the spear, Iroz has a 1350WHP RS3 and I think Mike Botti's supra did 1400whp? Both are high 7-second cars.
The new BMWs will be very fast now that they come with AWD and even higher-flowing heads than the B58.