This has been discussed, and not many exceptions were taking to your point of view. But this is a somewhat subjective thing. Different people hold the eyepieces differently next to their eyes and have different demands, different conditions, and naturally different impressions.
FWIW, I find that between my 8x42 FL and 10x50 BR, the Leica wins at scattered light control, but they are characteristically different, and neither is perfect by any means.
The Leica is at its worst with the sun about 30 degrees above the view. Then, a bright reflection appears at the bottom edge of the view. This can be disturbingly bright at times. But if the eyecups are lowered a bit, the eyes shifted upward a bit, and the gaze held at the center of the field, the view there remains remarkably clean.
In the Zeiss, the glare washes more uniformly over the entire field without the bright artifact seen in the Leica. It helps a little to lower the eyecups, but unlike the Leica, the center view is still significantly hazed over.
The two are so different that even if somebody else saw exactly what I saw, they might well prefer the Zeiss in this regard.
Ron